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{"id": "OSV:DLA-2394-1", "bulletinFamily": "software", "title": "squid3 - security update", "description": "\nSeveral security vulnerabilities have been discovered in Squid, a highperformance proxy caching server for web clients.\n\n\n* [CVE-2020-15049](https://security-tracker.debian.org/tracker/CVE-2020-15049)\nAn issue was discovered in http/ContentLengthInterpreter.cc in\n Squid. A Request Smuggling and Poisoning attack can succeed against\n the HTTP cache. The client sends an HTTP request with a Content Length header containing \"+\\ \"-\" or an uncommon shell whitespace\n character prefix to the length field-value.\n This update also includes several other improvements to the\n HttpHeader parsing code.\n* [CVE-2020-15810](https://security-tracker.debian.org/tracker/CVE-2020-15810)\nand [CVE-2020-15811](https://security-tracker.debian.org/tracker/CVE-2020-15811)\n\n\nDue to incorrect data validation, HTTP Request Smuggling attacks may\n succeed against HTTP and HTTPS traffic. This leads to cache\n poisoning and allows any client, including browser scripts, to\n bypass local security and poison the proxy cache and any downstream\n caches with content from an arbitrary source. When configured for\n relaxed header parsing (the default), Squid relays headers\n containing whitespace characters to upstream servers. When this\n occurs as a prefix to a Content-Length header, the frame length\n specified will be ignored by Squid (allowing for a conflicting\n length to be used from another Content-Length header) but relayed\n upstream.\n* [CVE-2020-24606](https://security-tracker.debian.org/tracker/CVE-2020-24606)\nSquid allows a trusted peer to perform Denial of Service by\n consuming all available CPU cycles during handling of a crafted\n Cache Digest response message. This only occurs when cache\\_peer is\n used with the cache digests feature. The problem exists because\n peerDigestHandleReply() livelocking in peer\\_digest.cc mishandles\n EOF.\n\n\nFor Debian 9 stretch, these problems have been fixed in version\n3.5.23-5+deb9u5.\n\n\nWe recommend that you upgrade your squid3 packages.\n\n\nFor the detailed security status of squid3 please refer to\nits security tracker page at:\n<https://security-tracker.debian.org/tracker/squid3>\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "published": "2020-10-02T00:00:00", "modified": "2022-07-21T05:53:24", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}, "cvss2": {"acInsufInfo": false, "cvssV2": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": 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"enchantments": {"dependencies": {"references": [{"idList": ["H1:758445"], "type": "hackerone"}, {"idList": ["OPENVAS:1361412562310144212"], "type": "openvas"}, {"idList": ["USN-4895-1", "USN-4477-1", "USN-4551-1"], "type": "ubuntu"}, {"idList": ["ELSA-2020-4743", "ELSA-2020-4082", "ELSA-2020-3623"], "type": "oraclelinux"}, {"idList": ["0A425AE154320282FF38ABB3C8BA8D3AD10793B88A3CFCA031B295F986453B12"], "type": "ibm"}, {"idList": ["CLSA-2021:1632262221", "CLSA-2021:1629902677"], "type": "cloudlinux"}, {"idList": ["VERACODE:27294", "VERACODE:26842", "VERACODE:27026", "VERACODE:27274"], "type": "veracode"}, {"idList": ["ALSA-2020:4743"], "type": "almalinux"}, {"idList": ["MGASA-2020-0361"], "type": "mageia"}, {"idList": ["UB:CVE-2020-15049", "UB:CVE-2020-15810", "UB:CVE-2020-24606", "UB:CVE-2020-15811"], "type": "ubuntucve"}, {"idList": ["RH:CVE-2020-15811", "RH:CVE-2020-15810", "RH:CVE-2020-15049", "RH:CVE-2020-24606"], "type": "redhatcve"}, {"idList": ["DEBIAN:DSA-4751-1:4365C", "DEBIAN:DSA-4751-1:72F2D", "DEBIAN:DLA-2394-1:9B122", "DEBIAN:DLA-2394-1:6349E"], "type": "debian"}, {"idList": ["FEDORA:E738630A4CE1", "FEDORA:6CCDC3093144", "FEDORA:BA99330B0A30", "FEDORA:6E1AA30C325C"], "type": "fedora"}, {"idList": ["CESA-2020:4082"], "type": "centos"}, {"idList": ["ALAS2-2020-1548", "ALAS-2020-1453"], "type": "amazon"}, {"idList": ["CVE-2020-15811", "CVE-2020-24606", "CVE-2020-15810", "CVE-2020-15049"], "type": "cve"}, {"idList": ["RHSA-2020:4743", "RHSA-2020:4082", "RHSA-2020:3623"], "type": "redhat"}, {"idList": ["DEBIANCVE:CVE-2020-15049", "DEBIANCVE:CVE-2020-24606", "DEBIANCVE:CVE-2020-15811", "DEBIANCVE:CVE-2020-15810"], "type": "debiancve"}, {"idList": ["EULEROS_SA-2020-2273.NASL", "NEWSTART_CGSL_NS-SA-2021-0030_SQUID.NASL", "EULEROS_SA-2021-1234.NASL", "ALA_ALAS-2020-1453.NASL", "SQUID_5_0_3.NASL", "SUSE_SU-2020-2443-1.NASL", "SUSE_SU-2020-14460-1.NASL", "EULEROS_SA-2021-1123.NASL", "FEDORA_2020-73AF8655EB.NASL", "AL2_ALAS-2020-1548.NASL", 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0.3}, "_state": {"score": 1660002080, "dependencies": 1659998956, "affected_software_major_version": 1666703109, "epss": 1679338714}, "_internal": {"score_hash": "288fbc2ccb9b86ba697794d28a744dbf"}, "affectedSoftware": [{"name": "squid3", "operator": "eq", "version": "3.5.23-5+deb9u2"}, {"name": "squid3", "operator": "eq", "version": "3.5.23-5+deb9u1"}, {"name": "squid3", "operator": "eq", "version": "3.5.23-5+deb9u4"}, {"name": "squid3", "operator": "eq", "version": "3.5.23-5"}, {"name": "squid3", "operator": "eq", "version": "3.5.23-5+deb9u3"}]}

{"nessus": [{"lastseen": "2023-01-20T15:45:36", "description": "The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4551-1 advisory.\n\n - An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing +\\ - or an uncommon shell whitespace character prefix to the length field-value. (CVE-2020-15049)\n\n - An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. 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This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches. (CVE-2020-15811)\n\n - Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF. 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When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost. (CVE-2019-12523)\n\n - An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks its rules to see if the request should be denied. Squid by default comes with rules to block access to the Cache Manager, which serves detailed server information meant for the maintainer. This rule is implemented via url_regex. The handler for url_regex rules URL decodes an incoming request. This allows an attacker to encode their URL to bypass the url_regex check, and gain access to the blocked resource. (CVE-2019-12524)\n\n - An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1. (CVE-2019-12525)\n\n - An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap. (CVE-2019-12526)\n\n - An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non- Squid processes. (CVE-2019-12528)\n\n - An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode.\n uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages. (CVE-2019-12529)\n\n - The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.\n (CVE-2019-13345)\n\n - An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme. (CVE-2019-18676)\n\n - An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.\n (CVE-2019-18677)\n\n - An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon. (CVE-2019-18678)\n\n - An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.\n (CVE-2019-18679)\n\n - Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi. (CVE-2019-18860)\n\n - An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials). (CVE-2020-11945)\n\n - An issue was discovered in Squid 5.x before 5.0.3. Due to an Incorrect Synchronization, a Denial of Service can occur when processing objects in an SMP cache because of an Ipc::Mem::PageStack::pop ABA problem during access to the memory page/slot management list. 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Access to these package security updates require\\n' +\n 'a paid SUSE LTSS subscription.\\n';\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : rpm_report_get() + ltss_plugin_caveat\n );\n exit(0);\n}\nelse\n{\n tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'squid3');\n}\n", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "suse": [{"lastseen": "2022-04-18T12:41:06", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for squid fixes the following issues:\n\n squid was updated to version 4.13:\n\n - CVE-2020-24606: Fix livelocking in peerDigestHandleReply (bsc#1175671).\n - CVE-2020-15811: Improve Transfer-Encoding handling (bsc#1175665).\n - CVE-2020-15810: Enforce token characters for field-name (bsc#1175664).\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2020-1369=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-09-07T00:00:00", "type": "suse", "title": "Security update for squid (critical)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-07T00:00:00", "id": "OPENSUSE-SU-2020:1369-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UMN3THRFFUTAXOEGHNHSGKY647AMB7D6/", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-11-06T17:59:12", "description": "An update that fixes four vulnerabilities is now available.\n\nDescription:\n\n This update for squid fixes the following issues:\n\n squid was updated to version 4.13:\n\n - CVE-2020-24606: Fix livelocking in peerDigestHandleReply (bsc#1175671).\n - CVE-2020-15811: Improve Transfer-Encoding handling (bsc#1175665).\n - CVE-2020-15810: Enforce token characters for field-name (bsc#1175664).\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.1:\n\n zypper in -t patch openSUSE-2020-1346=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-09-05T00:00:00", "type": "suse", "title": "Security update for squid (critical)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-05T00:00:00", "id": "OPENSUSE-SU-2020:1346-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7ZLGD6G3KY7JU2TB5YQO7CEN77XZWRYS/", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}], "ubuntu": [{"lastseen": "2023-01-26T15:32:52", "description": "## Releases\n\n * Ubuntu 18.04 LTS\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * squid3 \\- Web proxy cache server\n\nAlex Rousskov and Amit Klein discovered that Squid incorrectly handled \ncertain Content-Length headers. A remote attacker could possibly use this \nissue to perform an HTTP request smuggling attack, resulting in cache \npoisoning. (CVE-2020-15049)\n\nAmit Klein discovered that Squid incorrectly validated certain data. A \nremote attacker could possibly use this issue to perform an HTTP request \nsmuggling attack, resulting in cache poisoning. (CVE-2020-15810)\n\nR\u00e9gis Leroy discovered that Squid incorrectly validated certain data. A \nremote attacker could possibly use this issue to perform an HTTP request \nsplitting attack, resulting in cache poisoning. (CVE-2020-15811)\n\nLubos Uhliarik discovered that Squid incorrectly handled certain Cache \nDigest response messages sent by trusted peers. A remote attacker could \npossibly use this issue to cause Squid to consume resources, resulting in a \ndenial of service. (CVE-2020-24606)\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-09-28T00:00:00", "type": "ubuntu", "title": "Squid vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-28T00:00:00", "id": "USN-4551-1", "href": "https://ubuntu.com/security/notices/USN-4551-1", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-01-26T15:34:15", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n\n## Packages\n\n * squid \\- Web proxy cache server\n\nAmit Klein discovered that Squid incorrectly validated certain data. A \nremote attacker could possibly use this issue to perform an HTTP request \nsmuggling attack, resulting in cache poisoning. (CVE-2020-15810)\n\nR\u00e9gis Leroy discovered that Squid incorrectly validated certain data. A \nremote attacker could possibly use this issue to perform an HTTP request \nsplitting attack, resulting in cache poisoning. (CVE-2020-15811)\n\nLubos Uhliarik discovered that Squid incorrectly handled certain Cache \nDigest response messages sent by trusted peers. A remote attacker could \npossibly use this issue to cause Squid to consume resources, resulting in a \ndenial of service. (CVE-2020-24606)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-27T00:00:00", "type": "ubuntu", "title": "Squid vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-08-27T00:00:00", "id": "USN-4477-1", "href": "https://ubuntu.com/security/notices/USN-4477-1", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-01-26T15:23:51", "description": "## Releases\n\n * Ubuntu 20.10 \n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 LTS\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * squid \\- Web proxy cache server\n * squid3 \\- Web proxy cache server\n\nAlex Rousskov and Amit Klein discovered that Squid incorrectly handled \ncertain Content-Length headers. A remote attacker could possibly use this \nissue to perform an HTTP request smuggling attack, resulting in cache \npoisoning. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-15049)\n\nJianjun Chen discovered that Squid incorrectly validated certain input. A \nremote attacker could use this issue to perform HTTP Request Smuggling and \npossibly access services forbidden by the security controls. \n(CVE-2020-25097)\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-03-29T00:00:00", "type": "ubuntu", "title": "Squid vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-25097"], "modified": "2021-03-29T00:00:00", "id": "USN-4895-1", "href": "https://ubuntu.com/security/notices/USN-4895-1", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}], "debian": [{"lastseen": "2021-10-22T10:56:58", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2394-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Markus Koschany\nOctober 02, 2020 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : squid3\nVersion : 3.5.23-5+deb9u5\nCVE ID : CVE-2020-15049 CVE-2020-15810 CVE-2020-15811\n CVE-2020-24606\n\nSeveral security vulnerabilities have been discovered in Squid, a high-\nperformance proxy caching server for web clients.\n\nCVE-2020-15049\n\n An issue was discovered in http/ContentLengthInterpreter.cc in\n Squid. A Request Smuggling and Poisoning attack can succeed against\n the HTTP cache. The client sends an HTTP request with a Content-\n Length header containing &quot;+\\ &quot;-&quot; or an uncommon shell whitespace\n character prefix to the length field-value.\n This update also includes several other improvements to the\n HttpHeader parsing code.\n\nCVE-2020-15810 and CVE-2020-15811\n\n Due to incorrect data validation, HTTP Request Smuggling attacks may\n succeed against HTTP and HTTPS traffic. This leads to cache\n poisoning and allows any client, including browser scripts, to\n bypass local security and poison the proxy cache and any downstream\n caches with content from an arbitrary source. When configured for\n relaxed header parsing (the default), Squid relays headers\n containing whitespace characters to upstream servers. When this\n occurs as a prefix to a Content-Length header, the frame length\n specified will be ignored by Squid (allowing for a conflicting\n length to be used from another Content-Length header) but relayed\n upstream.\n\nCVE-2020-24606\n\n Squid allows a trusted peer to perform Denial of Service by\n consuming all available CPU cycles during handling of a crafted\n Cache Digest response message. This only occurs when cache_peer is\n used with the cache digests feature. The problem exists because\n peerDigestHandleReply() livelocking in peer_digest.cc mishandles\n EOF.\n\nFor Debian 9 stretch, these problems have been fixed in version\n3.5.23-5+deb9u5.\n\nWe recommend that you upgrade your squid3 packages.\n\nFor the detailed security status of squid3 please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/squid3\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-10-02T16:29:55", "type": "debian", "title": "[SECURITY] [DLA 2394-1] squid3 security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-10-02T16:29:55", "id": "DEBIAN:DLA-2394-1:9B122", "href": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-01-22T04:07:48", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2394-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Markus Koschany\nOctober 02, 2020 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : squid3\nVersion : 3.5.23-5+deb9u5\nCVE ID : CVE-2020-15049 CVE-2020-15810 CVE-2020-15811\n CVE-2020-24606\n\nSeveral security vulnerabilities have been discovered in Squid, a high-\nperformance proxy caching server for web clients.\n\nCVE-2020-15049\n\n An issue was discovered in http/ContentLengthInterpreter.cc in\n Squid. A Request Smuggling and Poisoning attack can succeed against\n the HTTP cache. The client sends an HTTP request with a Content-\n Length header containing &quot;+\\ &quot;-&quot; or an uncommon shell whitespace\n character prefix to the length field-value.\n This update also includes several other improvements to the\n HttpHeader parsing code.\n\nCVE-2020-15810 and CVE-2020-15811\n\n Due to incorrect data validation, HTTP Request Smuggling attacks may\n succeed against HTTP and HTTPS traffic. This leads to cache\n poisoning and allows any client, including browser scripts, to\n bypass local security and poison the proxy cache and any downstream\n caches with content from an arbitrary source. When configured for\n relaxed header parsing (the default), Squid relays headers\n containing whitespace characters to upstream servers. When this\n occurs as a prefix to a Content-Length header, the frame length\n specified will be ignored by Squid (allowing for a conflicting\n length to be used from another Content-Length header) but relayed\n upstream.\n\nCVE-2020-24606\n\n Squid allows a trusted peer to perform Denial of Service by\n consuming all available CPU cycles during handling of a crafted\n Cache Digest response message. This only occurs when cache_peer is\n used with the cache digests feature. The problem exists because\n peerDigestHandleReply() livelocking in peer_digest.cc mishandles\n EOF.\n\nFor Debian 9 stretch, these problems have been fixed in version\n3.5.23-5+deb9u5.\n\nWe recommend that you upgrade your squid3 packages.\n\nFor the detailed security status of squid3 please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/squid3\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-10-02T16:29:55", "type": "debian", "title": "[SECURITY] [DLA 2394-1] squid3 security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-10-02T16:29:55", "id": "DEBIAN:DLA-2394-1:6349E", "href": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-10-21T21:39:02", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4751-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nAugust 27, 2020 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : squid\nCVE ID : CVE-2020-15810 CVE-2020-15811 CVE-2020-24606\nDebian Bug : 968932 968933 968934\n\nSeveral vulnerabilities were discovered in Squid, a fully featured web\nproxy cache, which could result in request splitting, request smuggling\n(leading to cache poisoning) and denial of service when processing\ncrafted cache digest responses messages.\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.6-1+deb10u4.\n\nWe recommend that you upgrade your squid packages.\n\nFor the detailed security status of squid please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/squid\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-08-27T13:05:31", "type": "debian", "title": "[SECURITY] [DSA 4751-1] squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-08-27T13:05:31", "id": "DEBIAN:DSA-4751-1:72F2D", "href": "https://lists.debian.org/debian-security-announce/2020/msg00158.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-03-24T15:14:56", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4751-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nAugust 27, 2020 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : squid\nCVE ID : CVE-2020-15810 CVE-2020-15811 CVE-2020-24606\nDebian Bug : 968932 968933 968934\n\nSeveral vulnerabilities were discovered in Squid, a fully featured web\nproxy cache, which could result in request splitting, request smuggling\n(leading to cache poisoning) and denial of service when processing\ncrafted cache digest responses messages.\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.6-1+deb10u4.\n\nWe recommend that you upgrade your squid packages.\n\nFor the detailed security status of squid please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/squid\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-27T13:05:31", "type": "debian", "title": "[SECURITY] [DSA 4751-1] squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-08-27T13:05:31", "id": "DEBIAN:DSA-4751-1:4365C", "href": "https://lists.debian.org/debian-security-announce/2020/msg00158.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}], "amazon": [{"lastseen": "2023-02-08T17:34:07", "description": "**Issue Overview:**\n\nA flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15810)\n\nA flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15811)\n\nSquid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF. (CVE-2020-24606)\n\n \n**Affected Packages:** \n\n\nsquid\n\n \n**Issue Correction:** \nRun _yum update squid_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n aarch64: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.4.1.aarch64 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.4.1.aarch64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.4.1.aarch64 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.4.1.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.4.1.i686 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.4.1.i686 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.4.1.i686 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.4.1.i686 \n \n src: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.4.1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.4.1.x86_64 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.4.1.x86_64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.4.1.x86_64 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.4.1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2020-15810](<https://access.redhat.com/security/cve/CVE-2020-15810>), [CVE-2020-15811](<https://access.redhat.com/security/cve/CVE-2020-15811>), [CVE-2020-24606](<https://access.redhat.com/security/cve/CVE-2020-24606>)\n\nMitre: [CVE-2020-15810](<https://vulners.com/cve/CVE-2020-15810>), [CVE-2020-15811](<https://vulners.com/cve/CVE-2020-15811>), [CVE-2020-24606](<https://vulners.com/cve/CVE-2020-24606>)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-10-22T18:42:00", "type": "amazon", "title": "Important: squid", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-10-22T22:33:00", "id": "ALAS2-2020-1548", "href": "https://alas.aws.amazon.com/AL2/ALAS-2020-1548.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-02-08T17:10:02", "description": "**Issue Overview:**\n\nAn issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes. (CVE-2019-12528)\n\nAn issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing \"+\\ \"-\" or an uncommon shell whitespace character prefix to the length field-value. (CVE-2020-15049)\n\nA flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15810)\n\nA flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-15811)\n\nSquid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF. (CVE-2020-24606)\n\nAn issue was discovered in Squid before 4.10. Due to incorrect input validation, it can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters. (CVE-2020-8449)\n\nAn issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy. (CVE-2020-8450)\n\n \n**Affected Packages:** \n\n\nsquid\n\n \n**Issue Correction:** \nRun _yum update squid_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.41.amzn1.i686 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.41.amzn1.i686 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.41.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.41.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.41.amzn1.x86_64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.41.amzn1.x86_64 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.41.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2019-12528](<https://access.redhat.com/security/cve/CVE-2019-12528>), [CVE-2020-15049](<https://access.redhat.com/security/cve/CVE-2020-15049>), [CVE-2020-15810](<https://access.redhat.com/security/cve/CVE-2020-15810>), [CVE-2020-15811](<https://access.redhat.com/security/cve/CVE-2020-15811>), [CVE-2020-24606](<https://access.redhat.com/security/cve/CVE-2020-24606>), [CVE-2020-8449](<https://access.redhat.com/security/cve/CVE-2020-8449>), [CVE-2020-8450](<https://access.redhat.com/security/cve/CVE-2020-8450>)\n\nMitre: [CVE-2019-12528](<https://vulners.com/cve/CVE-2019-12528>), [CVE-2020-15049](<https://vulners.com/cve/CVE-2020-15049>), [CVE-2020-15810](<https://vulners.com/cve/CVE-2020-15810>), [CVE-2020-15811](<https://vulners.com/cve/CVE-2020-15811>), [CVE-2020-24606](<https://vulners.com/cve/CVE-2020-24606>), [CVE-2020-8449](<https://vulners.com/cve/CVE-2020-8449>), [CVE-2020-8450](<https://vulners.com/cve/CVE-2020-8450>)\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-11-16T17:59:00", "type": "amazon", "title": "Important: squid", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12528", "CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-16T20:46:00", "id": "ALAS-2020-1453", "href": "https://alas.aws.amazon.com/ALAS-2020-1453.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "fedora": [{"lastseen": "2021-07-28T14:46:51", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-09-25T17:06:35", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: squid-4.13-1.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-25T17:06:35", "id": "FEDORA:6CCDC3093144", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-07-28T14:46:51", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-09-03T16:27:17", "type": "fedora", "title": "[SECURITY] Fedora 31 Update: squid-4.13-1.fc31", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-03T16:27:17", "id": "FEDORA:E738630A4CE1", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-07-28T14:46:51", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-09-03T16:40:44", "type": "fedora", "title": "[SECURITY] Fedora 32 Update: squid-4.13-1.fc32", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-03T16:40:44", "id": "FEDORA:BA99330B0A30", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2021-07-28T14:46:51", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-07-11T01:04:47", "type": "fedora", "title": "[SECURITY] Fedora 31 Update: squid-4.12-1.fc31", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-14058", "CVE-2020-15049"], "modified": "2020-07-11T01:04:47", "id": "FEDORA:6E1AA30C325C", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}], "mageia": [{"lastseen": "2022-04-18T11:19:34", "description": "An issue was discovered in Squid before 4.13. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream (CVE-2020-15810). An issue was discovered in Squid before 4.13. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches (CVE-2020-15811). Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF (CVE-2020-24606). \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-04T09:16:18", "type": "mageia", "title": "Updated squid packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606"], "modified": "2020-09-04T09:16:18", "id": "MGASA-2020-0361", "href": "https://advisories.mageia.org/MGASA-2020-0361.html", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}], "osv": [{"lastseen": "2022-08-10T07:19:11", "description": "\nSeveral vulnerabilities were discovered in Squid, a fully featured web\nproxy cache, which could result in request splitting, request smuggling\n(leading to cache poisoning) and denial of service when processing\ncrafted cache digest responses messages.\n\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.6-1+deb10u4.\n\n\nWe recommend that you upgrade your squid packages.\n\n\nFor the detailed security status of squid please refer to its security\ntracker page at:\n<https://security-tracker.debian.org/tracker/squid>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-08-27T00:00:00", "type": "osv", "title": "squid - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811", "CVE-2020-24606", "CVE-2020-15810"], "modified": "2022-08-10T07:19:08", "id": "OSV:DSA-4751-1", "href": "https://osv.dev/vulnerability/DSA-4751-1", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-08-10T07:19:05", "description": "\nTwo security issues were discovered in the Squid proxy caching\nserver, which could result in cache poisoning, request smuggling\nand incomplete validation of hostnames in cachemgr.cgi.\n\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.6-1+deb10u3.\n\n\nWe recommend that you upgrade your squid packages.\n\n\nFor the detailed security status of squid please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/squid](https://security-tracker.debian.org/tracker/squid)\n\n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-07-21T00:00:00", "type": "osv", "title": "squid - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-18860", "CVE-2020-15049"], "modified": "2022-08-10T07:19:02", "id": "OSV:DSA-4732-1", "href": "https://osv.dev/vulnerability/DSA-4732-1", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}], "redhat": [{"lastseen": "2021-10-19T20:36:43", "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-09-30T00:17:14", "type": "redhat", "title": "(RHSA-2020:4082) Important: squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12528", "CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-09-30T06:05:50", "id": "RHSA-2020:4082", "href": "https://access.redhat.com/errata/RHSA-2020:4082", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-10-19T20:37:01", "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "baseScore": 6.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2020-09-03T12:36:52", "type": "redhat", "title": "(RHSA-2020:3623) Important: squid:4 security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811"], "modified": "2020-09-03T12:49:47", "id": "RHSA-2020:3623", "href": "https://access.redhat.com/errata/RHSA-2020:3623", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2021-10-19T20:39:44", "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467)\n\nSecurity Fix(es):\n\n* squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520)\n\n* squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521)\n\n* squid: Improper input validation in URI processor (CVE-2019-12523)\n\n* squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524)\n\n* squid: Heap overflow issue in URN processing (CVE-2019-12526)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529)\n\n* squid: Denial of service in cachemgr.cgi (CVE-2019-12854)\n\n* squid: Buffer overflow in URI processor (CVE-2019-18676)\n\n* squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677)\n\n* squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678)\n\n* squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679)\n\n* squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: DoS in TLS handshake (CVE-2020-14058)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-11-03T12:32:17", "type": "redhat", "title": "(RHSA-2020:4743) Moderate: squid:4 security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12520", "CVE-2019-12521", "CVE-2019-12523", "CVE-2019-12524", "CVE-2019-12526", "CVE-2019-12528", "CVE-2019-12529", "CVE-2019-12854", "CVE-2019-18676", "CVE-2019-18677", "CVE-2019-18678", "CVE-2019-18679", "CVE-2019-18860", "CVE-2020-14058", "CVE-2020-15049", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-04T00:02:31", "id": "RHSA-2020:4743", "href": "https://access.redhat.com/errata/RHSA-2020:4743", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "centos": [{"lastseen": "2023-01-01T05:07:55", "description": "**CentOS Errata and Security Advisory** CESA-2020:4082\n\n\nSquid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-cr-announce/2020-November/026266.html\n\n**Affected packages:**\nsquid\nsquid-migration-script\nsquid-sysvinit\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2020:4082", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-11-06T22:15:00", "type": "centos", "title": "squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12528", "CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-06T22:15:00", "id": "CESA-2020:4082", "href": "https://lists.centos.org/pipermail/centos-cr-announce/2020-November/026266.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "rocky": [{"lastseen": "2023-02-02T17:12:45", "description": "An update is available for libecap.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list\nSquid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-03T12:36:52", "type": "rocky", "title": "squid:4 security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810", "CVE-2020-15811"], "modified": "2020-09-03T12:36:52", "id": "RLSA-2020:3623", "href": "https://errata.rockylinux.org/RLSA-2020:3623", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2023-02-02T17:12:28", "description": "An update is available for libecap.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list\nSquid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467)\n\nSecurity Fix(es):\n\n* squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520)\n\n* squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521)\n\n* squid: Improper input validation in URI processor (CVE-2019-12523)\n\n* squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524)\n\n* squid: Heap overflow issue in URN processing (CVE-2019-12526)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529)\n\n* squid: Denial of service in cachemgr.cgi (CVE-2019-12854)\n\n* squid: Buffer overflow in URI processor (CVE-2019-18676)\n\n* squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677)\n\n* squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678)\n\n* squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679)\n\n* squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: DoS in TLS handshake (CVE-2020-14058)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.3 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-11-03T12:32:17", "type": "rocky", "title": "squid:4 security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12520", "CVE-2019-12521", "CVE-2019-12523", "CVE-2019-12524", "CVE-2019-12526", "CVE-2019-12528", "CVE-2019-12529", "CVE-2019-12854", "CVE-2019-18676", "CVE-2019-18677", "CVE-2019-18678", "CVE-2019-18679", "CVE-2019-18860", "CVE-2020-14058", "CVE-2020-15049", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-03T12:32:17", "id": "RLSA-2020:4743", "href": "https://errata.rockylinux.org/RLSA-2020:4743", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "oraclelinux": [{"lastseen": "2021-07-28T14:24:45", "description": "[7:3.5.20-17.4]\n- Resolves: #1872349 - CVE-2020-24606 squid: Improper Input Validation could\n result in a DoS\n- Resolves: #1872327 - CVE-2020-15810 squid: HTTP Request Smuggling could\n result in cache poisoning\n- Resolves: #1872342 - CVE-2020-15811 squid: HTTP Request Splitting could\n result in cache poisoning\n[7:3.5.20-17.2]\n- Resolves: #1802516 - CVE-2020-8449 squid: Improper input validation issues\n in HTTP Request processing\n- Resolves: #1802515 - CVE-2020-8450 squid: Buffer overflow in a Squid acting\n as reverse-proxy\n- Resolves: #1853129 - CVE-2020-15049 squid: request smuggling and poisoning\n attack against the HTTP cache\n- Resolves: #1802517 - CVE-2019-12528 squid: Information Disclosure issue in\n FTP Gateway\n[7:3.5.20-17]\n- Resolves: #1828361 - CVE-2020-11945 squid: improper access restriction upon\n Digest Authentication nonce replay could lead to remote code execution\n- Resolves: #1828362 - CVE-2019-12519 squid: improper check for new member in\n ESIExpression::Evaluate allows for stack buffer overflow [rhel\n[7:3.5.20-16]\n- Resolves: #1738582 - CVE-2019-12525 squid: parsing of header\n Proxy-Authentication leads to memory corruption", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-10-08T00:00:00", "type": "oraclelinux", "title": "squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12519", "CVE-2019-12525", "CVE-2019-12528", "CVE-2020-11945", "CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-10-08T00:00:00", "id": "ELSA-2020-4082", "href": "http://linux.oracle.com/errata/ELSA-2020-4082.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:24:50", "description": "libecap\nsquid\n[7:4.4-8.2]\n- Resolves: #1872345 - CVE-2020-15811 squid:4/squid: HTTP Request Splitting\n could result in cache poisoning\n- Resolves: #1872330 - CVE-2020-15810 squid:4/squid: HTTP Request Smuggling\n could result in cache poisoning\n[7:4.4-8.1]\n- Resolves: #1828368 - CVE-2019-12519 squid: improper check for new member in\n ESIExpression::Evaluate allows for stack buffer overflow\n- Resolves: #1828367 - CVE-2020-11945 squid: improper access restriction upon\n Digest Authentication nonce replay could lead to remote code execution\n- Resolves: #1829402 - CVE-2019-12525 squid:4/squid: parsing of header\n Proxy-Authentication leads to memory corruption", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-09-04T00:00:00", "type": "oraclelinux", "title": "squid:4 security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12519", "CVE-2019-12525", "CVE-2020-11945", "CVE-2020-15810", "CVE-2020-15811"], "modified": "2020-09-04T00:00:00", "id": "ELSA-2020-3623", "href": "http://linux.oracle.com/errata/ELSA-2020-3623.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-11-23T02:27:50", "description": " ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-11-10T00:00:00", "type": "oraclelinux", "title": "squid:4 security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12520", "CVE-2019-12521", "CVE-2019-12523", "CVE-2019-12524", "CVE-2019-12526", "CVE-2019-12528", "CVE-2019-12529", "CVE-2019-12854", "CVE-2019-18676", "CVE-2019-18677", "CVE-2019-18678", "CVE-2019-18679", "CVE-2019-18860", "CVE-2020-14058", "CVE-2020-15049", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-10T00:00:00", "id": "ELSA-2020-4743", "href": "http://linux.oracle.com/errata/ELSA-2020-4743.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "debiancve": [{"lastseen": "2022-12-17T15:21:18", "description": "An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing \"+\\ \"-\" or an uncommon shell whitespace character prefix to the length field-value.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-06-30T18:15:00", "type": "debiancve", "title": "CVE-2020-15049", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049"], "modified": "2020-06-30T18:15:00", "id": "DEBIANCVE:CVE-2020-15049", "href": "https://security-tracker.debian.org/tracker/CVE-2020-15049", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2022-12-17T15:21:18", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-02T17:15:00", "type": "debiancve", "title": "CVE-2020-15810", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 6.8, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 3.5, "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810"], "modified": "2020-09-02T17:15:00", "id": "DEBIANCVE:CVE-2020-15810", "href": "https://security-tracker.debian.org/tracker/CVE-2020-15810", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2022-12-17T15:21:18", "description": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T18:15:00", "type": "debiancve", "title": "CVE-2020-24606", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24606"], "modified": "2020-08-24T18:15:00", "id": "DEBIANCVE:CVE-2020-24606", "href": "https://security-tracker.debian.org/tracker/CVE-2020-24606", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-12-17T15:21:18", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-02T17:15:00", "type": "debiancve", "title": "CVE-2020-15811", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811"], "modified": "2020-09-02T17:15:00", "id": "DEBIANCVE:CVE-2020-15811", "href": "https://security-tracker.debian.org/tracker/CVE-2020-15811", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}], "redhatcve": [{"lastseen": "2023-03-08T20:19:38", "description": "A flaw was found in squid. A trusted client is able to perform a request smuggling and poison the HTTP cache contents with crafted HTTP(S) request messages. This attack requires an upstream server to participate in the smuggling and generate the poison response sequence. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-06-30T17:20:46", "type": "redhatcve", "title": "CVE-2020-15049", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049"], "modified": "2023-03-08T18:33:43", "id": "RH:CVE-2020-15049", "href": "https://access.redhat.com/security/cve/cve-2020-15049", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2023-03-08T20:19:09", "description": "A flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.\n#### Mitigation\n\nDisable the relaxed HTTP parser in `squid.conf`: \n\n \n \n relaxed_header_parser off \n \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T05:04:07", "type": "redhatcve", "title": "CVE-2020-15810", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 6.8, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 3.5, "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810"], "modified": "2023-03-08T18:38:13", "id": "RH:CVE-2020-15810", "href": "https://access.redhat.com/security/cve/cve-2020-15810", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2023-03-08T20:19:09", "description": "A flaw was found in squid. A denial of service attack is possible due to an improper input validation. The highest threat from this vulnerability is to system availability.\n#### Mitigation\n\nAdd the no-digest option to all cache_peer lines in squid.conf \n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-26T10:09:20", "type": "redhatcve", "title": "CVE-2020-24606", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24606"], "modified": "2023-03-08T18:33:45", "id": "RH:CVE-2020-24606", "href": "https://access.redhat.com/security/cve/cve-2020-24606", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2023-03-08T20:19:08", "description": "A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.\n#### Mitigation\n\nDisable the relaxed HTTP parser in `squid.conf`: \n\n \n \n relaxed_header_parser off \n \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T05:04:08", "type": "redhatcve", "title": "CVE-2020-15811", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811"], "modified": "2023-03-08T18:38:14", "id": "RH:CVE-2020-15811", "href": "https://access.redhat.com/security/cve/cve-2020-15811", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}], "ubuntucve": [{"lastseen": "2022-08-04T13:28:03", "description": "An issue was discovered in http/ContentLengthInterpreter.cc in Squid before\n4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can\nsucceed against the HTTP cache. The client sends an HTTP request with a\nContent-Length header containing \"+\\ \"-\" or an uncommon shell whitespace\ncharacter prefix to the length field-value.\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | per upstream, \"This attack requires an upstream server to participate in the smuggling and generate the poison response sequence.\"\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-06-30T00:00:00", "type": "ubuntucve", "title": "CVE-2020-15049", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049"], "modified": "2020-06-30T00:00:00", "id": "UB:CVE-2020-15049", "href": "https://ubuntu.com/security/CVE-2020-15049", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2022-08-04T13:26:53", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to\nincorrect data validation, HTTP Request Smuggling attacks may succeed\nagainst HTTP and HTTPS traffic. This leads to cache poisoning. This allows\nany client, including browser scripts, to bypass local security and poison\nthe proxy cache and any downstream caches with content from an arbitrary\nsource. When configured for relaxed header parsing (the default), Squid\nrelays headers containing whitespace characters to upstream servers. When\nthis occurs as a prefix to a Content-Length header, the frame length\nspecified will be ignored by Squid (allowing for a conflicting length to be\nused from another Content-Length header) but relayed upstream.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968934>\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T00:00:00", "type": "ubuntucve", "title": "CVE-2020-15810", "bulletinFamily": "info", "cvss2": {"severity": "LOW", "exploitabilityScore": 6.8, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 3.5, "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810"], "modified": "2020-08-24T00:00:00", "id": "UB:CVE-2020-15810", "href": "https://ubuntu.com/security/CVE-2020-15810", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2022-08-04T13:26:53", "description": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform\nDenial of Service by consuming all available CPU cycles during handling of\na crafted Cache Digest response message. This only occurs when cache_peer\nis used with the cache digests feature. The problem exists because\npeerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968933>\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T00:00:00", "type": "ubuntucve", "title": "CVE-2020-24606", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24606"], "modified": "2020-08-24T00:00:00", "id": "UB:CVE-2020-24606", "href": "https://ubuntu.com/security/CVE-2020-24606", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-08-04T13:26:53", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to\nincorrect data validation, HTTP Request Splitting attacks may succeed\nagainst HTTP and HTTPS traffic. This leads to cache poisoning. This allows\nany client, including browser scripts, to bypass local security and poison\nthe browser cache and any downstream caches with content from an arbitrary\nsource. Squid uses a string search instead of parsing the Transfer-Encoding\nheader to find chunked encoding. This allows an attacker to hide a second\nrequest inside Transfer-Encoding: it is interpreted by Squid as chunked and\nsplit out into a second request delivered upstream. Squid will then deliver\ntwo distinct responses to the client, corrupting any downstream caches.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968932>\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T00:00:00", "type": "ubuntucve", "title": "CVE-2020-15811", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811"], "modified": "2020-08-24T00:00:00", "id": "UB:CVE-2020-15811", "href": "https://ubuntu.com/security/CVE-2020-15811", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}], "cve": [{"lastseen": "2023-02-09T15:05:50", "description": "An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing \"+\\ \"-\" or an uncommon shell whitespace character prefix to the length field-value.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-06-30T18:15:00", "type": "cve", "title": "CVE-2020-15049", "cwe": ["CWE-444"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049"], "modified": "2021-03-12T13:15:00", "cpe": ["cpe:/a:squid-cache:squid:3.5.28", "cpe:/o:fedoraproject:fedora:31", "cpe:/a:squid-cache:squid:2.6", "cpe:/a:squid-cache:squid:2.7"], "id": "CVE-2020-15049", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-15049", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.6:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:3.5.28:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T15:07:16", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-02T17:15:00", "type": "cve", "title": "CVE-2020-15810", "cwe": ["CWE-444"], "bulletinFamily": "NVD", "cvss2": {"severity": "LOW", "exploitabilityScore": 6.8, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 3.5, "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810"], "modified": "2021-03-17T15:21:00", "cpe": ["cpe:/o:opensuse:leap:15.2", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:32", "cpe:/o:opensuse:leap:15.1", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:canonical:ubuntu_linux:18.04", "cpe:/o:fedoraproject:fedora:31", "cpe:/o:canonical:ubuntu_linux:20.04", "cpe:/o:canonical:ubuntu_linux:16.04"], "id": "CVE-2020-15810", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-15810", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}, "cpe23": ["cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T15:13:34", "description": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-08-24T18:15:00", "type": "cve", "title": "CVE-2020-24606", "cwe": ["CWE-667"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24606"], "modified": "2021-07-21T11:39:00", "cpe": ["cpe:/o:opensuse:leap:15.2", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:32", "cpe:/o:opensuse:leap:15.1", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:canonical:ubuntu_linux:18.04", "cpe:/o:fedoraproject:fedora:31", "cpe:/o:canonical:ubuntu_linux:20.04", "cpe:/o:canonical:ubuntu_linux:16.04"], "id": "CVE-2020-24606", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-24606", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}, "cpe23": ["cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T15:07:17", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-02T17:15:00", "type": "cve", "title": "CVE-2020-15811", "cwe": ["CWE-444"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811"], "modified": "2021-03-04T20:59:00", "cpe": ["cpe:/o:opensuse:leap:15.2", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:32", "cpe:/o:opensuse:leap:15.1", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:canonical:ubuntu_linux:18.04", "cpe:/o:fedoraproject:fedora:31", "cpe:/o:canonical:ubuntu_linux:20.04", "cpe:/o:canonical:ubuntu_linux:16.04"], "id": "CVE-2020-15811", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-15811", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}, "cpe23": ["cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"]}], "openvas": [{"lastseen": "2020-07-21T19:27:01", "description": "Squid is prone to a cache poisoning vulnerability.", "cvss3": {}, "published": "2020-07-03T00:00:00", "type": "openvas", "title": "Squid Proxy Cache Security Update Advisory SQUID-2020:7", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2020-15049"], "modified": "2020-07-14T00:00:00", "id": "OPENVAS:1361412562310144212", "href": "http://plugins.openvas.org/nasl.php?oid=1361412562310144212", "sourceData": "# Copyright (C) 2020 Greenbone Networks GmbH\n# Some text descriptions might be excerpted from (a) referenced\n# source(s), and are Copyright (C) by the respective right holder(s).\n#\n# SPDX-License-Identifier: GPL-2.0-or-later\n#\n# This program is free software; you can redistribute it and/or\n# modify it under the terms of the GNU General Public License\n# as published by the Free Software Foundation; either version 2\n# of the License, or (at your option) any later version.\n#\n# This program is distributed in the hope that it will be useful,\n# but WITHOUT ANY WARRANTY; without even the implied warranty of\n# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n# GNU General Public License for more details.\n#\n# You should have received a copy of the GNU General Public License\n# along with this program; if not, write to the Free Software\n# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.\n\nCPE = \"cpe:/a:squid-cache:squid\";\n\nif (description)\n{\n script_oid(\"1.3.6.1.4.1.25623.1.0.144212\");\n script_version(\"2020-07-14T13:08:55+0000\");\n script_tag(name:\"last_modification\", value:\"2020-07-14 13:08:55 +0000 (Tue, 14 Jul 2020)\");\n script_tag(name:\"creation_date\", value:\"2020-07-03 05:56:38 +0000 (Fri, 03 Jul 2020)\");\n script_tag(name:\"cvss_base\", value:\"6.5\");\n script_tag(name:\"cvss_base_vector\", value:\"AV:N/AC:L/Au:S/C:P/I:P/A:P\");\n\n script_cve_id(\"CVE-2020-15049\");\n\n script_tag(name:\"qod_type\", value:\"remote_banner_unreliable\");\n\n script_tag(name:\"solution_type\", value:\"VendorFix\");\n\n script_name(\"Squid Proxy Cache Security Update Advisory SQUID-2020:7\");\n\n script_category(ACT_GATHER_INFO);\n\n script_copyright(\"Copyright (C) 2020 Greenbone Networks GmbH\");\n script_family(\"Web application abuses\");\n script_dependencies(\"secpod_squid_detect.nasl\");\n script_mandatory_keys(\"squid_proxy_server/installed\");\n\n script_tag(name:\"summary\", value:\"Squid is prone to a cache poisoning vulnerability.\");\n\n script_tag(name:\"insight\", value:\"Due to incorrect input validation Squid is vulnerable to a Request Smuggling\n and Poisoning attack against the HTTP cache.\");\n\n script_tag(name:\"vuldetect\", value:\"Checks if a vulnerable version is present on the target host.\");\n\n script_tag(name:\"affected\", value:\"Squid versions 2.0 - 2.STABLE9, 3.0 - 3.5.28, 4.0 - 4.11 and 5.0.1 - 5.0.2.\");\n\n script_tag(name:\"solution\", value:\"Update to version 4.12, 5.0.3 or later.\");\n\n script_xref(name:\"URL\", value:\"https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5\");\n\n exit(0);\n}\n\ninclude(\"host_details.inc\");\ninclude(\"version_func.inc\");\n\nif (!port = get_app_port(cpe: CPE))\n exit(0);\n\nif (!version = get_app_version(cpe: CPE, port: port))\n exit(0);\n\nif (version =~ \"2\\.\" ||\n version_in_range(version: version, test_version: \"3.0\", test_version2: \"3.5.28\") ||\n version_in_range(version: version, test_version: \"4.0\", test_version2: \"4.11\")) {\n report = report_fixed_ver(installed_version: version, fixed_version: \"4.12\");\n security_message(port: port, data: report);\n exit(0);\n}\n\nif (version_in_range(version: version, test_version: \"5.0.1\", test_version2: \"5.0.2\")) {\n report = report_fixed_ver(installed_version: version, fixed_version: \"5.0.3\");\n security_message(port: port, data: report);\n exit(0);\n}\n\nexit(99);\n", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}], "veracode": [{"lastseen": "2022-07-26T16:28:16", "description": "squid is vulnerable to HTTP request smuggling. An attacker is able to successfully perform request smuggling and poisoning attack against the HTTP cache by sending an HTTP request with a Content-Length header containing `+\\ \"-` or an uncommon shell whitespace character prefix to the length field-value.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-09-29T03:37:17", "type": "veracode", "title": "HTTP Request Smuggling", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15049"], "modified": "2021-03-12T15:28:56", "id": "VERACODE:27274", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-27274/summary", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2022-07-26T16:55:44", "description": "Squid is vulnerable to HTTP request smuggling. An attacker is able to smuggle HTTP requests due to insecure data validation in the `Content-Length` header. This vulnerability allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-21T06:21:33", "type": "veracode", "title": "HTTP Request Smuggling", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 6.8, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 3.5, "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15810"], "modified": "2021-03-17T18:34:03", "id": "VERACODE:26842", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-26842/summary", "cvss": {"score": 3.5, "vector": "AV:N/AC:M/Au:S/C:N/I:P/A:N"}}, {"lastseen": "2022-07-26T13:49:50", "description": "Squid is vulnerable denial of service (DoS). It allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-09-21T06:31:21", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "COMPLETE", "integrityImpact": "NONE", "baseScore": 7.1, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-24606"], "modified": "2021-03-17T18:34:15", "id": "VERACODE:27026", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-27026/summary", "cvss": {"score": 7.1, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C"}}, {"lastseen": "2022-07-26T16:53:17", "description": "squid is vulnerable to HTTP Request Splitting. Insecure parsing of the `Transfer-Encoding` header allows an attacker to split an HTTP request and perform cache poisoning.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-10-01T03:46:26", "type": "veracode", "title": "HTTP Request Splitting", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-15811"], "modified": "2021-03-04T21:31:37", "id": "VERACODE:27294", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-27294/summary", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:P/A:N"}}], "cloudlinux": [{"lastseen": "2021-08-25T16:35:48", "description": "- CVE-2020-14058: fix handling of unknown SSL errors which resulted in denial of\n service\n- CVE-2020-15049: fix incorrect validation of Content-Length field leading to\n Http smuggling and Poisoning attack", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-08-25T14:44:37", "type": "cloudlinux", "title": "Fix of CVE: CVE-2020-14058, CVE-2020-15049", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-14058", "CVE-2020-15049"], "modified": "2021-08-25T14:44:37", "id": "CLSA-2021:1629902677", "href": "https://repo.cloudlinux.com/centos6-els/updateinfo.xml", "cvss": {"score": 6.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:P"}}, {"lastseen": "2021-09-22T18:36:25", "description": "- CVE-2020-15049: fix incorrect validation of Content-Length field leading to\n Http smuggling and Poisoning attack\n- CVE-2020-14058: fix handling of unknown SSL errors which resulted in denial of\n service\n- CVE-2020-25097: fix improper input validation allowing HTTP smuggling from\n trusted client\n- CVE-2020-11945: fix nonce reference counter overflow allowing replay attack\n- CVE-2020-24606: fix handle of EOF in peerDigestHandleReply() leading to Denial\n of service\n- CVE-2020-8517: fix incorrect input validation allowing writing outside of buffer\n and leading to denial of service\n- CVE-2020-8449: fix improper HTTP request validation allowing access to \n resources which are prohibited by security filters\n- CVE-2020-8450: fix incorrect buffer managment leading to buffer overflow\n- CVE-2021-28651: fix memory leak leading to denial of service", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-09-21T22:10:21", "type": "cloudlinux", "title": "Fix of CVE: CVE-2020-8517, CVE-2021-28651, CVE-2020-15049, CVE-2020-8449, CVE-2020-8450, CVE-2020-24606, CVE-2020-25097, CVE-2020-11945, CVE-2020-14058", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-11945", "CVE-2020-14058", "CVE-2020-15049", "CVE-2020-24606", "CVE-2020-25097", "CVE-2020-8449", "CVE-2020-8450", "CVE-2020-8517", "CVE-2021-28651"], "modified": "2021-09-21T22:10:21", "id": "CLSA-2021:1632262221", "href": "https://repo.cloudlinux.com/centos6-els/updateinfo.xml", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "hackerone": [{"lastseen": "2023-03-28T23:28:52", "bounty": 18000.0, "description": "Hello, as can be seen on a recent public security update by Squid I reported several smuggling issues.\nIf you want some background on impact of Smuggling issues You can check the current works of James Keetle or my own previous published works.\n\n* https://www.youtube.com/watch?v=upEMlJeU_Ik HTTP Desync Attacks: Smashing Into The Cell Next Door - James Kettle\n* https://www.youtube.com/watch?v=dVU9i5PsMPY DEF CON 24 - regilero - Hiding Wookiees in HTTP: HTTP smuggling\n\nBut I'm quite sure that the recent additions of Smuggling tools in Burp suite is making Smuggling impacts issues more easy to understand now.\n\n# CVE-2019-18678\n \n* http://www.squid-cache.org/Advisories/SQUID-2019_10.txt\n\ncurrent score (5 / 5.3) available at :\n* https://www.suse.com/fr-fr/security/cve/CVE-2019-18678/\n\n> --------------------------\n> Advisory ID: SQUID-2019:10\n> Date: November 05, 2019\n> Summary: HTTP Request Splitting issue\n> in HTTP message processing.\n> Affected versions: Squid 3.0 -> 3.5.28\n> Squid 4.x -> 4.8\n> Fixed in version: Squid 4.9\n> ---------------------------->\n> \n> http://www.squid-cache.org/Advisories/SQUID-2019_10.txt\n> \n> (...)\n> \n> Credits:\n> \n> This vulnerability was discovered by by R\u00e9gis Leroy (regilero\n> from Makina Corpus).\n>\n> Fixed by Amos Jeffries of Treehouse Networks Ltd.\n> Revision history:\n>\n> 2019-07-24 11:52:51 UTC Initial Report\n> 2019-09-11 02:52:52 UTC Patches Released\n> 2019-11-04 13:43:22 UTC CVE Assignment\n\nI can give more details than what is publicly available.\nOn the initial report from 2019-07-24 there were 4 issues. Only 1 of these issues is currently covered by the CVE-2019-18678.\n\n## Issue 1 : undisclosed Squid 3 issue\n\nThere is also an undisclosed Security filter bypass for Squid 3.x. This is a wonfix for Squid because Squid 3.x is not maintained anymore.\nWithout complete details this is an abuse of separators characters which allows access to urls where a security filter in Squid is present to prevent such locations from being accessed.\n\nProject maintainer response:\n\n> Please be aware that Squid-3 has been deprecated for several years now.\n> Several of the problems you are pointing out are well-known issues with\n> the HTTP protocol design from RFC2616 itself not being clear. Squid-3\n> primarily implements that specification, with only sprinkling of RFC7230.\n>\n> Squid-4 increases the upgrade to RFC7230 specification with\n> implementation of the majority of message parsing updates. Though that\n> is still an ongoing work.\n>\n> (...)\n> As do Squid-4 releases. The fix is to upgrade the proxy to a version\n> where the problem has been fixed.\n\n## Issue 2 : HTTP Response Splitting issue on bad withespaces before header's colon\n\nSquid allowed bad withespaces characters between the header title and the colon (before value).\nThis is forbidden in RFC 7230.\n\n> 3.2. Header Fields\n>\n> Each header field consists of a case-insensitive field name followed\n> by a colon (\":\"), optional leading whitespace, the field value, and\n> optional trailing whitespace.\n> header-field = field-name \":\" OWS field-value OWS\n> field-name = token\n> (...)\n> \n> 3.2.4. Field Parsing\n> (...)\n> **No whitespace is allowed between the header field-name and colon**. In\n> the past, differences in the handling of such whitespace have led to\n> security vulnerabilities in request routing and response handling. **A**\n> **server MUST reject any received request message that contains**\n> **whitespace between a header field-name and colon** with a response code\n> of 400 (Bad Request). A proxy MUST remove any such whitespace from a\n> response message before forwarding the message downstream.\n\nThis could be used to perform HTTP Smuggling attacks (if you want more details on exploitations I can add some very detailled examples, I'll just give you a short version).\n\nVarious invalid syntax where a space or pseudo space is added before ':' in the header line could be used against Squid to obtain an HTTP Response splitting attack:\n\n* Transfer-Encoding : chunked\\r\\n\n* Transfer-Encoding\\t: chunked\\r\\n\n* Transfer-Encoding\\f: chunked\\r\\n\n* Transfer-Encoding\\f: chunked\\r\\n\n* Transfer-Encoding\\r: chunked\\r\\n\n* Transfer-Encoding\\x0b: chunked\\r\\n\n* Transfer-Encoding\\t\\x0b \\r\\f: chunked\\r\\n\n\nSquid would give 3 response for this request (it should see only 2 requests, one from 01 to 12, and one from 13 to 15, but Squid saw one from 01 to 08, one from 09 to 12 and one from 14 to 15):\n\n01 POST /?t=41 HTTP/1.1\\r\\n\n02 Host: dummy-host.example.com\\r\\n\n03 X-REQUEST-IDENTIFIER: 41\\r\\n\n04 Content-Length: 92\\r\\n\n05 Transfer-Encoding\\x0b: chunked\\r\\n\n06 \\r\\n\n07 0\\r\\n\n08 \\r\\n\n09 GET /foo.html?t=42 HTTP/1.1\\r\\n\n10 Host: dummy-host.example.com\\r\\n\n11 X-REQUEST-IDENTIFIER: 42\\r\\n\n12 \\r\\n\n13 GET /bar.html?t=43 HTTP/1.1\\r\\n\n14 Host: dummy-host.example.com\\r\\n\n15 X-REQUEST-IDENTIFIER: 43\\r\\n\n15 \\r\\n\n\nImpacts are quite high, like HTTP Cache poisoning for any actor set in front of Squid, and security filter bypass for this previous actor also. Adding extra responses from the Squid stream is definitively a good way for adding choas on the HTTP chain (Dos, Xss, etc).\n\n## Issue 3 : Undisclosed SeverSide Request Forgery issue\n\nThis one is only fixed on master. The fix is not present on any published version of Squid. So we may talk about it later.\n\n\n## Issue 4 : Undisclosed HTTP Request Splitting\n\nThis one is still present and not yet fixed. So we may talk about it later, because I think it will be fixed one day.\nI'm pretty sure this issue will soon be discovered by other bounty hunters. So I don't know if I should already give more details to claim precedence, currently I'll keep the details undisclosed and let the project maintainers act on that.\n\n## Summary\n\nIssue `#2` is the one covered by the published CVE.\nFor issues `#3` & `#4` I'm pretty sure that I will make reports later.\nFor issue `#1` I'm not sure this can be covered by this program, I could give you more details if you want.\n\n## Impact\n\nLike most HTTP Smuggling issue impact is not always directly targeted on Squid, here (if we only talk about issue #2) the impact is very important for HTTP actors set in front of squid (like an SSL terminator).\n\nCache poisoning, DOS, XSS, etc.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2019-12-14T11:11:17", "type": "hackerone", "title": "Internet Bug Bounty: HTTP Smuggling multiple issues in Squid 3.x & squid 4.x", "bulletinFamily": "bugbounty", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-18678", "CVE-2020-15811", "CVE-2020-8449"], "modified": "2021-08-26T23:57:28", "id": "H1:758445", "href": "https://hackerone.com/reports/758445", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:P/A:N"}}], "ibm": [{"lastseen": "2023-03-24T21:53:01", "description": "## Summary\n\nIBM Security Guardium has fixed these vulnerabilities \n\n## Vulnerability Details\n\n** CVEID: **[CVE-2019-12528](<https://vulners.com/cve/CVE-2019-12528>) \n** DESCRIPTION: **Squid could allow a remote attacker to obtain sensitive information, caused by incorrect data management when translating FTP server listings into HTTP responses. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain user sessions or non-Squid processes information, and use this information to launch further attacks against the affected system. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/175917](<https://exchange.xforce.ibmcloud.com/vulnerabilities/175917>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) \n \n** CVEID: **[CVE-2020-8449](<https://vulners.com/cve/CVE-2020-8449>) \n** DESCRIPTION: **Squid could allow a remote attacker to obtain sensitive information, caused by improper input validation. By sending a specially-crafted HTTP request, an attacker could exploit this vulnerability to obtain server resources information, and use this information to launch further attacks against the affected system. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/175719](<https://exchange.xforce.ibmcloud.com/vulnerabilities/175719>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) \n \n** CVEID: **[CVE-2020-8450](<https://vulners.com/cve/CVE-2020-8450>) \n** DESCRIPTION: **Squid is vulnerable to a buffer overflow, caused by improper bounds checking. By sending a specially-crafted request, a remote attacker could overflow a buffer and execute arbitrary code or cause a denial of service condition on the system. \nCVSS Base score: 9.8 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/175720](<https://exchange.xforce.ibmcloud.com/vulnerabilities/175720>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2020-15049](<https://vulners.com/cve/CVE-2020-15049>) \n** DESCRIPTION: **Squid-Cache Squid is vulnerable to HTTP request smuggling, caused by improper input validation. By sending specially crafted HTTP(S) request messages, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks. \nCVSS Base score: 9.9 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/184302](<https://exchange.xforce.ibmcloud.com/vulnerabilities/184302>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2020-15810](<https://vulners.com/cve/CVE-2020-15810>) \n** DESCRIPTION: **Squid-Cache Squid is vulnerable to HTTP request smuggling, caused by improper input validation. By sending specially crafted HTTP(S) request messages, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks. \nCVSS Base score: 9.6 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/187451](<https://exchange.xforce.ibmcloud.com/vulnerabilities/187451>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N) \n \n** CVEID: **[CVE-2020-15811](<https://vulners.com/cve/CVE-2020-15811>) \n** DESCRIPTION: **Squid-Cache Squid is vulnerable to HTTP request splitting attacks, caused by improper input validation in HTTP message processing. A remote attacker could exploit this vulnerability to inject arbitrary HTTP request and cause the browser to send 2 HTTP requests, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning or cross-site scripting. \nCVSS Base score: 6.1 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/187546](<https://exchange.xforce.ibmcloud.com/vulnerabilities/187546>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) \n \n** CVEID: **[CVE-2020-24606](<https://vulners.com/cve/CVE-2020-24606>) \n** DESCRIPTION: **Squid is vulnerable to a denial of service, caused by the mishandling of EOF in the peerDigestHandleReply function in peer_digest.cc. By sending a specially-crafted Cache Digest response message, a remote attacker could exploit this vulnerability to consume all available CPU cycles. \nCVSS Base score: 8.6 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/187152](<https://exchange.xforce.ibmcloud.com/vulnerabilities/187152>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) \n \n** CVEID: **[CVE-2021-20426](<https://vulners.com/cve/CVE-2021-20426>) \n** DESCRIPTION: **IBM Security Guardium 11.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. IBM X-Force ID: 196313. \nCVSS Base score: 5.9 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196313](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196313>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) \n \n** CVEID: **[CVE-2019-19956](<https://vulners.com/cve/CVE-2019-19956>) \n** DESCRIPTION: **libxml2 is vulnerable to a denial of service, caused by a memory leak in xmlParseBalancedChunkMemoryRecover in parser.c. By persuading a victim to open a specially crafted file, a remote attacker could exploit this vulnerability to cause the application to crash. \nCVSS Base score: 3.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/173518](<https://exchange.xforce.ibmcloud.com/vulnerabilities/173518>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) \n \n** CVEID: **[CVE-2019-20388](<https://vulners.com/cve/CVE-2019-20388>) \n** DESCRIPTION: **GNOME libxml2 could allow a remote attacker to obtain sensitive information, caused by a xmlSchemaValidateStream memory leak in xmlSchemaPreRun in xmlschemas.c. By persuading a victim to open a specially crafted file, an attacker could exploit this vulnerability to obtain sensitive information. \nCVSS Base score: 3.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/175539](<https://exchange.xforce.ibmcloud.com/vulnerabilities/175539>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) \n \n** CVEID: **[CVE-2020-7595](<https://vulners.com/cve/CVE-2020-7595>) \n** DESCRIPTION: **GNOME libxml2 is vulnerable to a denial of service, caused by an error in xmlStringLenDecodeEntities in parser.c. An attacker could exploit this vulnerability to cause the application to enter into an infinite loop. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/175333](<https://exchange.xforce.ibmcloud.com/vulnerabilities/175333>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) \n \n** CVEID: **[CVE-2021-20419](<https://vulners.com/cve/CVE-2021-20419>) \n** DESCRIPTION: **IBM Security Guardium 11.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196280. \nCVSS Base score: 6.8 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196280](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196280>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N) \n \n** CVEID: **[CVE-2021-20385](<https://vulners.com/cve/CVE-2021-20385>) \n** DESCRIPTION: **IBM Security Guardium 11.2 could allow a remote authenticated attacker to execute arbitrary commands on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system. IBM X-Force ID: 195766. \nCVSS Base score: 8.4 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/195766](<https://exchange.xforce.ibmcloud.com/vulnerabilities/195766>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2020-5259](<https://vulners.com/cve/CVE-2020-5259>) \n** DESCRIPTION: **Dojo dojox could allow a remote attacker to inject arbitrary code on the system, caused by a prototype pollution flaw. By injecting other values, an attacker could exploit this vulnerability to overwrite, or pollute, a JavaScript application object prototype of the base object. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/177752](<https://exchange.xforce.ibmcloud.com/vulnerabilities/177752>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) \n \n** CVEID: **[CVE-2020-5258](<https://vulners.com/cve/CVE-2020-5258>) \n** DESCRIPTION: **Dojo dojo could allow a remote attacker to inject arbitrary code on the system, caused by a prototype pollution flaw. By injecting other values, an attacker could exploit this vulnerability to overwrite, or pollute, a JavaScript application object prototype of the base object. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/177751](<https://exchange.xforce.ibmcloud.com/vulnerabilities/177751>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) \n \n** CVEID: **[CVE-2019-10785](<https://vulners.com/cve/CVE-2019-10785>) \n** DESCRIPTION: **Dojox is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the dojox.xmpp.util.xmlEncode. A remote attacker could exploit this vulnerability to execute script in a victim's Web browser within the security context of the hosting Web site. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials. \nCVSS Base score: 6.1 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/176460](<https://exchange.xforce.ibmcloud.com/vulnerabilities/176460>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) \n \n** CVEID: **[CVE-2019-14866](<https://vulners.com/cve/CVE-2019-14866>) \n** DESCRIPTION: **GNU cpio could allow a local authenticated attacker to gain elevated privileges on the system, caused by the failure to properly validate input files when generating TAR archives. An attacker could exploit this vulnerability to inject any tar content and compromise the system. \nCVSS Base score: 6.7 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/171509](<https://exchange.xforce.ibmcloud.com/vulnerabilities/171509>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2019-12450](<https://vulners.com/cve/CVE-2019-12450>) \n** DESCRIPTION: **GNOME GLib could allow a remote attacker to bypass security restrictions, caused by improper permission control in the file_copy_fallback in gio/gfile.c. An attacker could exploit this vulnerability to bypass access restrictions. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/161792](<https://exchange.xforce.ibmcloud.com/vulnerabilities/161792>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) \n \n** CVEID: **[CVE-2019-14822](<https://vulners.com/cve/CVE-2019-14822>) \n** DESCRIPTION: **IBus could allow a local authenticated attacker to bypass security restrictions, caused by improper authorization validation. By sending a specially-crafted request, an attacker could exploit this vulnerability to monitor and send method calls to the ibus bus of another user. \nCVSS Base score: 5.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/167063](<https://exchange.xforce.ibmcloud.com/vulnerabilities/167063>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N) \n \n** CVEID: **[CVE-2020-13401](<https://vulners.com/cve/CVE-2020-13401>) \n** DESCRIPTION: **Docker Docker CE is vulnerable to a man-in-the-middle attack, caused by improper validation of router advertisements. By sending rogue router advertisements, an attacker could exploit this vulnerability using man-in-the-middle techniques to gain access to the communication channel between endpoints to obtain sensitive information or further compromise the system. \nCVSS Base score: 6 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/182750](<https://exchange.xforce.ibmcloud.com/vulnerabilities/182750>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L) \n \n** CVEID: **[CVE-2020-12049](<https://vulners.com/cve/CVE-2020-12049>) \n** DESCRIPTION: **D-Bus is vulnerable to a denial of service, caused by an error in _dbus_read_socket_with_unix_fds. By sending specially crafted messages, a local attacker could exploit this vulnerability to cause the system dbus-daemon (dbus-daemon --system) to leak file descriptors. \nCVSS Base score: 4 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/182955](<https://exchange.xforce.ibmcloud.com/vulnerabilities/182955>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) \n \n** CVEID: **[CVE-2019-12749](<https://vulners.com/cve/CVE-2019-12749>) \n** DESCRIPTION: **D-Bus could allow a remote attacker to bypass security restrictions, caused by symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. By manipulating a ~/.dbus-keyrings symlink, an attacker could exploit this vulnerability to bypass DBUS_COOKIE_SHA1 authentication to allow a DBusServer with a different uid to read and write in arbitrary locations. \nCVSS Base score: 9.1 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/162386](<https://exchange.xforce.ibmcloud.com/vulnerabilities/162386>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) \n \n** CVEID: **[CVE-2019-5482](<https://vulners.com/cve/CVE-2019-5482>) \n** DESCRIPTION: **cURL libcurl is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the tftp_receive_packet function. By sending specially-crafted request containing an OACK without the BLKSIZE option, a remote attacker could overflow a buffer and execute arbitrary code on the system. \nCVSS Base score: 6.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/166942](<https://exchange.xforce.ibmcloud.com/vulnerabilities/166942>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) \n \n** CVEID: **[CVE-2020-8177](<https://vulners.com/cve/CVE-2020-8177>) \n** DESCRIPTION: **cURL could allow a remote attacker to overwrite arbitrary files on the system, caused by the improper handling of certain parameters when using -J (--remote-header-name) and -I (--include) in the same command line. An attacker could exploit this vulnerability to overwrite a local file. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/183931](<https://exchange.xforce.ibmcloud.com/vulnerabilities/183931>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) \n \n** CVEID: **[CVE-2021-20386](<https://vulners.com/cve/CVE-2021-20386>) \n** DESCRIPTION: **IBM Security Guardium 11.2 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 195767. \nCVSS Base score: 6.1 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/195767](<https://exchange.xforce.ibmcloud.com/vulnerabilities/195767>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) \n \n** CVEID: **[CVE-2019-5094](<https://vulners.com/cve/CVE-2019-5094>) \n** DESCRIPTION: **E2fsprogs could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an out-of-bounds write in the quota file functionality. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/167547](<https://exchange.xforce.ibmcloud.com/vulnerabilities/167547>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2019-5188](<https://vulners.com/cve/CVE-2019-5188>) \n** DESCRIPTION: **E2fsprogs could allow a local authenticated attacker to execute arbitrary code on the system, caused by an out-of-bounds write in the directory rehashing function. By using a specially-crafted ext4 directory, an attacker could exploit this vulnerability to execute arbitrary code on the system. \nCVSS Base score: 7.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/174075](<https://exchange.xforce.ibmcloud.com/vulnerabilities/174075>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2019-11719](<https://vulners.com/cve/CVE-2019-11719>) \n** DESCRIPTION: **Mozilla Firefox could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when importing a curve25519 private key in PKCS#8format. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability using unknown attack vectors to obtain sensitive information. \nCVSS Base score: 6.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/163512](<https://exchange.xforce.ibmcloud.com/vulnerabilities/163512>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) \n \n** CVEID: **[CVE-2021-20389](<https://vulners.com/cve/CVE-2021-20389>) \n** DESCRIPTION: **IBM Security Guardium 11.2 stores user credentials in plain clear text which can be read by a local user. IBM X-Force ID: 195770. \nCVSS Base score: 5.1 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/195770](<https://exchange.xforce.ibmcloud.com/vulnerabilities/195770>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) \n \n** CVEID: **[CVE-2020-12825](<https://vulners.com/cve/CVE-2020-12825>) \n** DESCRIPTION: **Libcroco is vulnerable to a denial of service, caused by excessive recursion in cr_parser_parse_any_core in cr-parser.c. By persuading a victim to open a specially-crafted CSS file, a remote attacker could exploit this vulnerability to cause stack consumption. \nCVSS Base score: 3.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/181959](<https://exchange.xforce.ibmcloud.com/vulnerabilities/181959>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) \n \n** CVEID: **[CVE-2021-21284](<https://vulners.com/cve/CVE-2021-21284>) \n** DESCRIPTION: **Docker could allow a remote authenticated attacker to gain elevated privileges on the system, caused by a flaw when using the --userns-remap option. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges as root on the system. \nCVSS Base score: 8 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196047](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196047>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) \n \n** CVEID: **[CVE-2021-21285](<https://vulners.com/cve/CVE-2021-21285>) \n** DESCRIPTION: **Docker is vulnerable to a denial of service, caused by improper input validation. By persuading a victim to pull a specially-crafted Docker image, a remote attacker could exploit this vulnerability to cause the dockerd daemon to crash, and results in a denial of service condition. \nCVSS Base score: 6.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196049](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196049>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) \n \n** CVEID: **[CVE-2020-10754](<https://vulners.com/cve/CVE-2020-10754>) \n** DESCRIPTION: **NetworkManager could allow a remote authenticated attacker to bypass security restrictions, caused by improper configuration in the nmcli. By connecting to a network, an attacker could exploit this vulnerability to bypass authentication. \nCVSS Base score: 4.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/184636](<https://exchange.xforce.ibmcloud.com/vulnerabilities/184636>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) \n \n** CVEID: **[CVE-2021-20428](<https://vulners.com/cve/CVE-2021-20428>) \n** DESCRIPTION: **IBM Security Guardium 11.2 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 196315. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/196315](<https://exchange.xforce.ibmcloud.com/vulnerabilities/196315>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) \n \n** CVEID: **[CVE-2021-3156](<https://vulners.com/cve/CVE-2021-3156>) \n** DESCRIPTION: **Sudo is vulnerable to a heap-based buffer overflow, caused by improper bounds checking when parsing command line arguments. By sending an \"sudoedit -s\" and a command-line argument that ends with a single backslash character, a local attacker could overflow a buffer and execute arbitrary code on the system with root privileges. This vulnerability is also known as Baron Samedit. \nCVSS Base score: 8.4 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/195658](<https://exchange.xforce.ibmcloud.com/vulnerabilities/195658>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)\n\n## Affected Products and Versions\n\nAffected Product(s)| Version(s) \n---|--- \nIBM Security Guardium| 10.5 \nIBM Security Guardium| 10.6 \nIBM Security Guardium| 11.0 \nIBM Security Guardium| 11.1 \nIBM Security Guardium| 11.2 \nIBM Security Guardium| 11.3 \n \n## Remediation/Fixes\n\nProduct| Versions| Fix \n---|---|--- \nIBM Security Guardium| 10.5| \n\n[http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=10.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_10.0p545_Bundle_Oct-19-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=10.0&platform=Linux&function=fixId&fixids=SqlGuard_10.0p545_Bundle_Oct-19-2021&includeSupersedes=0&source=fc>) \n \nIBM Security Guardium| 10.6| [http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=10.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_10.0p675_Bundle_Aug-11-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=10.0&platform=Linux&function=fixId&fixids=SqlGuard_10.0p675_Bundle_Aug-11-2021&includeSupersedes=0&source=fc>) \nIBM Security Guardium| 11.0| \n\n[http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=11.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_11.0p40_Bundle_Oct-04-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=11.0&platform=Linux&function=fixId&fixids=SqlGuard_11.0p40_Bundle_Oct-04-2021&includeSupersedes=0&source=fc>) \n \nIBM Security Guardium| 11.1| \n\n[http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=11.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_11.0p150_Bundle_Oct-26-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=11.0&platform=Linux&function=fixId&fixids=SqlGuard_11.0p150_Bundle_Oct-26-2021&includeSupersedes=0&source=fc>) \n \nIBM Security Guardium| 11.2| \n\n[http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=11.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_11.0p250_Bundle_Jul-14-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=11.0&platform=Linux&function=fixId&fixids=SqlGuard_11.0p250_Bundle_Jul-14-2021&includeSupersedes=0&source=fc>) \n \nIBM Security Guardium| 11.3| \n\n[http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&amp;product=ibm/Information+Management/InfoSphere+Guardium&amp;release=11.0&amp;platform=Linux&amp;function=fixId&amp;fixids=SqlGuard_11.0p330_Bundle_Oct-06-2021&amp;includeSupersedes=0&amp;source=fc](<http://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=11.0&platform=Linux&function=fixId&fixids=SqlGuard_11.0p330_Bundle_Oct-06-2021&includeSupersedes=0&source=fc>) \n \n## Workarounds and Mitigations\n\nNone\n\n## ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-04-15T21:36:47", "type": "ibm", "title": "Security Bulletin: IBM Security Guardium is affected by multiple vulnerabilities", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.0, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-10785", "CVE-2019-11719", "CVE-2019-12450", "CVE-2019-12528", "CVE-2019-12749", "CVE-2019-14822", "CVE-2019-14866", "CVE-2019-19956", "CVE-2019-20388", "CVE-2019-5094", "CVE-2019-5188", "CVE-2019-5482", "CVE-2020-10754", "CVE-2020-12049", "CVE-2020-12825", "CVE-2020-13401", "CVE-2020-15049", "CVE-2020-15810", "CVE-2020-15811", "CVE-2020-24606", "CVE-2020-5258", "CVE-2020-5259", "CVE-2020-7595", "CVE-2020-8177", "CVE-2020-8449", "CVE-2020-8450", "CVE-2021-20385", "CVE-2021-20386", "CVE-2021-20389", "CVE-2021-20419", "CVE-2021-20426", "CVE-2021-20428", "CVE-2021-21284", "CVE-2021-21285", "CVE-2021-3156"], "modified": "2022-04-15T21:36:47", "id": "0A425AE154320282FF38ABB3C8BA8D3AD10793B88A3CFCA031B295F986453B12", "href": "https://www.ibm.com/support/pages/node/6455281", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}}], "almalinux": [{"lastseen": "2022-05-12T14:58:00", "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467)\n\nSecurity Fix(es):\n\n* squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520)\n\n* squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521)\n\n* squid: Improper input validation in URI processor (CVE-2019-12523)\n\n* squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524)\n\n* squid: Heap overflow issue in URN processing (CVE-2019-12526)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529)\n\n* squid: Denial of service in cachemgr.cgi (CVE-2019-12854)\n\n* squid: Buffer overflow in URI processor (CVE-2019-18676)\n\n* squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677)\n\n* squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678)\n\n* squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679)\n\n* squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: DoS in TLS handshake (CVE-2020-14058)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-11-03T12:32:17", "type": "almalinux", "title": "Moderate: squid:4 security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-12520", "CVE-2019-12521", "CVE-2019-12523", "CVE-2019-12524", "CVE-2019-12526", "CVE-2019-12528", "CVE-2019-12529", "CVE-2019-12854", "CVE-2019-18676", "CVE-2019-18677", "CVE-2019-18678", "CVE-2019-18679", "CVE-2019-18860", "CVE-2020-14058", "CVE-2020-15049", "CVE-2020-24606", "CVE-2020-8449", "CVE-2020-8450"], "modified": "2020-11-03T19:54:15", "id": "ALSA-2020:4743", "href": "https://errata.almalinux.org/8/ALSA-2020-4743.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}]}