- -------------------------------------------------------------------------
Debian Security Advisory DSA-4122-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 23, 2018 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : squid3
CVE ID : CVE-2018-1000024 CVE-2018-1000027
Debian Bug : 888719 888720
Several vulnerabilities have been discovered in Squid3, a fully featured
web proxy cache. The Common Vulnerabilities and Exposures project
identifies the following issues:
CVE-2018-1000024
Louis Dion-Marcil discovered that Squid does not properly handle
processing of certain ESI responses. A remote server delivering
certain ESI response syntax can take advantage of this flaw to cause
a denial of service for all clients accessing the Squid service.
This problem is limited to the Squid custom ESI parser.
http://www.squid-cache.org/Advisories/SQUID-2018_1.txt
CVE-2018-1000027
Louis Dion-Marcil discovered that Squid is prone to a denial of
service vulnerability when processing ESI responses or downloading
intermediate CA certificates. A remote attacker can take advantage
of this flaw to cause a denial of service for all clients accessing
the Squid service.
http://www.squid-cache.org/Advisories/SQUID-2018_2.txt
For the oldstable distribution (jessie), these problems have been fixed
in version 3.4.8-6+deb8u5.
For the stable distribution (stretch), these problems have been fixed in
version 3.5.23-5+deb9u1.
We recommend that you upgrade your squid3 packages.
For the detailed security status of squid3 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/squid3
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluate the top of the stack, or add a new member to the stack. When adding a new member, there is no check to ensure that the stack won't overflow. (CVE-2019-12519)\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 - The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later. (CVE-2018-1000024)\n\n - The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later. (CVE-2018-1000027)\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 - The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter.\n (CVE-2019-13345)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.", "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": "2020-12-09T00:00:00", "type": "nessus", "title": "NewStart CGSL CORE 5.05 / MAIN 5.05 : squid Multiple Vulnerabilities (NS-SA-2020-0090)", "bulletinFamily": "scanner", "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-2018-1000024", "CVE-2018-1000027", "CVE-2019-12519", "CVE-2019-12525", "CVE-2019-13345", "CVE-2020-11945"], "modified": "2020-12-10T00:00:00", "cpe": [], "id": "NEWSTART_CGSL_NS-SA-2020-0090_SQUID.NASL", "href": "https://www.tenable.com/plugins/nessus/143989", "sourceData": "##\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from ZTE advisory NS-SA-2020-0090. 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(CVE-2016-3948) Louis Dion-Marcil\n discovered that Squid incorrectly handled certain Edge Side Includes (ESI)\n responses. A malicious remote server could possibly cause Squid to crash,\n resulting in a denial of service. (CVE-2018-1000024) Louis Dion-Marcil\n discovered that Squid incorrectly handled certain Edge Side Includes (ESI)\n responses. A malicious remote server could possibly cause Squid to crash,\n resulting in a denial of service. 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This issue\n affects the Squid custom ESI parser. \n\nCVE-2018-1000027\n\n Incorrect pointer handling resulted in the possibility of a remote\n client delivering certain HTTP requests in conjunction with certain\n trusted server reponses involving the processing of ESI responses or\n downloading of intermediate CA certificates to trigger a denial of\n service for all clients accessing the squid service.\n\nFor Debian 7 "Wheezy", these problems have been fixed in version\n3.1.20-2.2+deb7u8.\n\nWe recommend that you upgrade your squid3 packages.\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\nAttachment:\nsignature.asc\nDescription: PGP signature\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-02T14:42:06", "type": "debian", "title": "[SECURITY] [DLA 1266-1] squid3 security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2018-02-02T14:42:06", "id": "DEBIAN:DLA-1266-1:73D47", "href": "https://lists.debian.org/debian-lts-announce/2018/02/msg00001.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-10-21T21:43:14", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4122-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nFebruary 23, 2018 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : squid3\nCVE ID : CVE-2018-1000024 CVE-2018-1000027\nDebian Bug : 888719 888720\n\nSeveral vulnerabilities have been discovered in Squid3, a fully featured\nweb proxy cache. The Common Vulnerabilities and Exposures project\nidentifies the following issues:\n\nCVE-2018-1000024\n\n Louis Dion-Marcil discovered that Squid does not properly handle\n processing of certain ESI responses. A remote server delivering\n certain ESI response syntax can take advantage of this flaw to cause\n a denial of service for all clients accessing the Squid service.\n This problem is limited to the Squid custom ESI parser.\n\n http://www.squid-cache.org/Advisories/SQUID-2018_1.txt\n\nCVE-2018-1000027\n\n Louis Dion-Marcil discovered that Squid is prone to a denial of\n service vulnerability when processing ESI responses or downloading\n intermediate CA certificates. A remote attacker can take advantage\n of this flaw to cause a denial of service for all clients accessing\n the Squid service.\n\n http://www.squid-cache.org/Advisories/SQUID-2018_2.txt\n\nFor the oldstable distribution (jessie), these problems have been fixed\nin version 3.4.8-6+deb8u5.\n\nFor the stable distribution (stretch), these problems have been fixed in\nversion 3.5.23-5+deb9u1.\n\nWe recommend that you upgrade your squid3 packages.\n\nFor the detailed security status of squid3 please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/squid3\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-22T23:45:07", "type": "debian", "title": "[SECURITY] [DSA 4122-1] squid3 security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2018-02-22T23:45:07", "id": "DEBIAN:DSA-4122-1:4EE00", "href": "https://lists.debian.org/debian-security-announce/2018/msg00047.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-12-10T16:18:42", "description": "Package : squid\nVersion : 2.7.STABLE9-4.1+deb7u3\nCVE ID : CVE-2018-1000027\nDebian Bug : 888720\n\n\nSquid, a high-performance proxy caching server for web clients, has been\nfound vulnerable to denial of service attacks associated with ESI\nresponse processing and intermediate CA certificate downloading.\n\nCVE-2018-1000027\n\n Incorrect pointer handling resulted in the possibility of a remote\n client delivering certain HTTP requests in conjunction with certain\n trusted server reponses involving the processing of ESI responses or\n downloading of intermediate CA certificates to trigger a denial of\n service for all clients accessing the squid service.\n\nFor Debian 7 "Wheezy", these problems have been fixed in version\n2.7.STABLE9-4.1+deb7u3.\n\nWe recommend that you upgrade your squid packages.\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\nAttachment:\nsignature.asc\nDescription: PGP signature\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-02T14:43:06", "type": "debian", "title": "[SECURITY] [DLA 1267-1] squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2018-02-02T14:43:06", "id": "DEBIAN:DLA-1267-1:BBE67", "href": "https://lists.debian.org/debian-lts-announce/2018/02/msg00002.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "osv": [{"lastseen": "2022-08-10T07:13:41", "description": "\nSeveral vulnerabilities have been discovered in Squid3, a fully featured\nweb proxy cache. The Common Vulnerabilities and Exposures project\nidentifies the following issues:\n\n\n* [CVE-2018-1000024](https://security-tracker.debian.org/tracker/CVE-2018-1000024)\nLouis Dion-Marcil discovered that Squid does not properly handle\n processing of certain ESI responses. A remote server delivering\n certain ESI response syntax can take advantage of this flaw to cause\n a denial of service for all clients accessing the Squid service.\n This problem is limited to the Squid custom ESI parser.\n* [CVE-2018-1000027](https://security-tracker.debian.org/tracker/CVE-2018-1000027)\nLouis Dion-Marcil discovered that Squid is prone to a denial of\n service vulnerability when processing ESI responses or downloading\n intermediate CA certificates. A remote attacker can take advantage\n of this flaw to cause a denial of service for all clients accessing\n the Squid service.\n\n\nFor the oldstable distribution (jessie), these problems have been fixed\nin version 3.4.8-6+deb8u5.\n\n\nFor the stable distribution (stretch), these problems have been fixed in\nversion 3.5.23-5+deb9u1.\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[\\\nhttps://security-tracker.debian.org/tracker/squid3](https://security-tracker.debian.org/tracker/squid3)\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-23T00:00:00", "type": "osv", "title": "squid3 - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2022-08-10T07:13:38", "id": "OSV:DSA-4122-1", "href": "https://osv.dev/vulnerability/DSA-4122-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-05T05:18:09", "description": "\nSquid, a high-performance proxy caching server for web clients, has been\nfound vulnerable to denial of service attacks associated with ESI\nresponse processing and intermediate CA certificate downloading.\n\n\n* [CVE-2018-1000024](https://security-tracker.debian.org/tracker/CVE-2018-1000024)\nIncorrect pointer handling resulted in the ability of a remote\n server to return a crafted ESI response which could trigger a denial\n of service for all clients accessing the Squid service. This issue\n affects the Squid custom ESI parser.\n* [CVE-2018-1000027](https://security-tracker.debian.org/tracker/CVE-2018-1000027)\nIncorrect pointer handling resulted in the possibility of a remote\n client delivering certain HTTP requests in conjunction with certain\n trusted server reponses involving the processing of ESI responses or\n downloading of intermediate CA certificates to trigger a denial of\n service for all clients accessing the squid service.\n\n\nFor Debian 7 Wheezy, these problems have been fixed in version\n3.1.20-2.2+deb7u8.\n\n\nWe recommend that you upgrade your squid3 packages.\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", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-02T00:00:00", "type": "osv", "title": "squid3 - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2022-08-05T05:18:06", "id": "OSV:DLA-1266-1", "href": "https://osv.dev/vulnerability/DLA-1266-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-05T05:18:08", "description": "\nSquid, a high-performance proxy caching server for web clients, has been\nfound vulnerable to denial of service attacks associated with ESI\nresponse processing and intermediate CA certificate downloading.\n\n\n* [CVE-2018-1000027](https://security-tracker.debian.org/tracker/CVE-2018-1000027)\nIncorrect pointer handling resulted in the possibility of a remote\n client delivering certain HTTP requests in conjunction with certain\n trusted server reponses involving the processing of ESI responses or\n downloading of intermediate CA certificates to trigger a denial of\n service for all clients accessing the squid service.\n\n\nFor Debian 7 Wheezy, these problems have been fixed in version\n2.7.STABLE9-4.1+deb7u3.\n\n\nWe recommend that you upgrade your squid packages.\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", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2018-02-02T00:00:00", "type": "osv", "title": "squid - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2022-08-05T05:18:06", "id": "OSV:DLA-1267-1", "href": "https://osv.dev/vulnerability/DLA-1267-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntu": [{"lastseen": "2023-01-26T12:55:14", "description": "## Releases\n\n * Ubuntu 12.04 \n\n## Packages\n\n * squid3 \\- Web proxy cache server\n\nUSN-4059-1 and USN-3557-1 fixed several vulnerabilities in Squid. This update provides \nthe corresponding update for Ubuntu 12.04 ESM.\n\nOriginal advisory details:\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain \nEdge Side Includes (ESI) responses. A malicious remote server could \npossibly cause Squid to crash, resulting in a denial of service. \n(CVE-2018-1000024)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain \nEdge Side Includes (ESI) responses. A malicious remote server could \npossibly cause Squid to crash, resulting in a denial of service. \n(CVE-2018-1000027)\n\nIt was discovered that Squid incorrectly handled the cachemgr.cgi web \nmodule. A remote attacker could possibly use this issue to conduct \ncross-site scripting (XSS) attacks. (CVE-2019-13345)\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2019-07-17T00:00:00", "type": "ubuntu", "title": "Squid vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027", "CVE-2019-13345"], "modified": "2019-07-17T00:00:00", "id": "USN-4059-2", "href": "https://ubuntu.com/security/notices/USN-4059-2", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-01-26T13:11:00", "description": "## Releases\n\n * Ubuntu 17.10 \n * Ubuntu 16.04 ESM\n * Ubuntu 14.04 ESM\n\n## Packages\n\n * squid3 \\- Web proxy cache server\n\nMathias Fischer discovered that Squid incorrectly handled certain long \nstrings in headers. A malicious remote server could possibly cause Squid to \ncrash, resulting in a denial of service. This issue was only addressed in \nUbuntu 16.04 LTS. (CVE-2016-2569)\n\nWilliam Lima discovered that Squid incorrectly handled XML parsing when \nprocessing Edge Side Includes (ESI). A malicious remote server could \npossibly cause Squid to crash, resulting in a denial of service. This issue \nwas only addressed in Ubuntu 16.04 LTS. (CVE-2016-2570)\n\nAlex Rousskov discovered that Squid incorrectly handled response-parsing \nfailures. A malicious remote server could possibly cause Squid to crash, \nresulting in a denial of service. This issue only applied to Ubuntu 16.04 \nLTS. (CVE-2016-2571)\n\nSantiago Ruano Rinc\u00f3n discovered that Squid incorrectly handled certain \nVary headers. A remote attacker could possibly use this issue to cause \nSquid to crash, resulting in a denial of service. This issue was only \naddressed in Ubuntu 16.04 LTS. (CVE-2016-3948)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge \nSide Includes (ESI) responses. A malicious remote server could possibly \ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000024)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge \nSide Includes (ESI) responses. A malicious remote server could possibly \ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000027)\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-02-05T00:00:00", "type": "ubuntu", "title": "Squid vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-2569", "CVE-2016-2570", "CVE-2016-2571", "CVE-2016-3948", "CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2018-02-05T00:00:00", "id": "USN-3557-1", "href": "https://ubuntu.com/security/notices/USN-3557-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-01-26T15:05:04", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * squid3 \\- Web proxy cache server\n\nUSN-3557-1 fixed vulnerabilities in Squid. This update introduced a regression \nwhich could cause the cache log to be filled with many Vary loop messages. This \nupdate fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\nMathias Fischer discovered that Squid incorrectly handled certain long \nstrings in headers. A malicious remote server could possibly cause Squid to \ncrash, resulting in a denial of service. This issue was only addressed in \nUbuntu 16.04 LTS. (CVE-2016-2569)\n\nWilliam Lima discovered that Squid incorrectly handled XML parsing when \nprocessing Edge Side Includes (ESI). A malicious remote server could \npossibly cause Squid to crash, resulting in a denial of service. This issue \nwas only addressed in Ubuntu 16.04 LTS. (CVE-2016-2570)\n\nAlex Rousskov discovered that Squid incorrectly handled response-parsing \nfailures. A malicious remote server could possibly cause Squid to crash, \nresulting in a denial of service. This issue only applied to Ubuntu 16.04 \nLTS. (CVE-2016-2571)\n\nSantiago Ruano Rinc\u00f3n discovered that Squid incorrectly handled certain \nVary headers. A remote attacker could possibly use this issue to cause \nSquid to crash, resulting in a denial of service. This issue was only \naddressed in Ubuntu 16.04 LTS. (CVE-2016-3948)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge \nSide Includes (ESI) responses. A malicious remote server could possibly \ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000024)\n\nLouis Dion-Marcil discovered that Squid incorrectly handled certain Edge \nSide Includes (ESI) responses. A malicious remote server could possibly \ncause Squid to crash, resulting in a denial of service. (CVE-2018-1000027)\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-12-12T00:00:00", "type": "ubuntu", "title": "Squid regression", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-2569", "CVE-2016-2570", "CVE-2016-2571", "CVE-2016-3948", "CVE-2018-1000024", "CVE-2018-1000027"], "modified": "2022-12-12T00:00:00", "id": "USN-5771-1", "href": "https://ubuntu.com/security/notices/USN-5771-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhat": [{"lastseen": "2021-10-19T20:36:40", "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: Incorrect pointer handling when processing ESI Responses can lead to denial of service (CVE-2018-1000024)\n\n* squid: Incorrect pointer handling in HTTP processing and certificate download can lead to denial of service (CVE-2018-1000027)\n\n* squid: XSS via user_name or auth parameter in cachemgr.cgi (CVE-2019-13345)\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 7.8 Release Notes linked from the References section.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2020-03-31T09:14:49", "type": "redhat", "title": "(RHSA-2020:1068) Moderate: squid security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027", "CVE-2019-13345"], "modified": "2020-11-18T19:54:26", "id": "RHSA-2020:1068", "href": "https://access.redhat.com/errata/RHSA-2020:1068", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "centos": [{"lastseen": "2023-01-01T05:08:10", "description": "**CentOS Errata and Security Advisory** CESA-2020:1068\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: Incorrect pointer handling when processing ESI Responses can lead to denial of service (CVE-2018-1000024)\n\n* squid: Incorrect pointer handling in HTTP processing and certificate download can lead to denial of service (CVE-2018-1000027)\n\n* squid: XSS via user_name or auth parameter in cachemgr.cgi (CVE-2019-13345)\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 7.8 Release Notes linked from the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-cr-announce/2020-April/025991.html\n\n**Affected packages:**\nsquid\nsquid-migration-script\nsquid-sysvinit\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2020:1068", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-04-08T19:21:41", "type": "centos", "title": "squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027", "CVE-2019-13345"], "modified": "2020-04-08T19:21:41", "id": "CESA-2020:1068", "href": "https://lists.centos.org/pipermail/centos-cr-announce/2020-April/025991.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "oraclelinux": [{"lastseen": "2021-07-28T14:24:35", "description": "[7:3.5.20-15]\n- Resolves: #1690551 - Squid cache_peer DNS lookup failed when not all lower\n case\n- Resolves: #1680022 - squid cant display download/upload packet size for HTTPS\n sites\n- Resolves: #1717430 - Excessive memory usage when running out of descriptors\n- Resolves: #1676420 - Cache siblings return wrongly cached gateway timeouts\n- Resolves: #1729435 - CVE-2019-13345 squid: XSS via user_name or auth parameter\n in cachemgr.cgi\n- Resolves: #1582301 - CVE-2018-1000024 CVE-2018-1000027 squid: various flaws\n[7:3.5.20-13]\n- Resolves: #1620546 - migration of upstream squid", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 3.6}, "published": "2020-04-06T00:00:00", "type": "oraclelinux", "title": "squid security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024", "CVE-2018-1000027", "CVE-2019-13345"], "modified": "2020-04-06T00:00:00", "id": "ELSA-2020-1068", "href": "http://linux.oracle.com/errata/ELSA-2020-1068.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "debiancve": [{"lastseen": "2022-12-17T15:21:17", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-02-09T23:29:00", "type": "debiancve", "title": "CVE-2018-1000024", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024"], "modified": "2018-02-09T23:29:00", "id": "DEBIANCVE:CVE-2018-1000024", "href": "https://security-tracker.debian.org/tracker/CVE-2018-1000024", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-12-17T15:21:17", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-02-09T23:29:00", "type": "debiancve", "title": "CVE-2018-1000027", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2018-02-09T23:29:00", "id": "DEBIANCVE:CVE-2018-1000027", "href": "https://security-tracker.debian.org/tracker/CVE-2018-1000027", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhatcve": [{"lastseen": "2022-07-07T11:11:12", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.\n#### Mitigation\n\nA workaround for this issue is to not use the internal ESI parser, which can be achieved by adding either the "esi_parser expat" or "esi_parser libxml2" configuration directive to the squid configuration file (for example /etc/squid/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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-03-05T07:33:58", "type": "redhatcve", "title": "CVE-2018-1000024", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024"], "modified": "2022-07-07T10:08:26", "id": "RH:CVE-2018-1000024", "href": "https://access.redhat.com/security/cve/cve-2018-1000024", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-07-07T11:11:11", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.\n#### Mitigation\n\nA workaround for this issue is to set the "log_uses_indirect_client off" configuration directive in the squid configuration file (for example /etc/squid/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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-01-29T15:20:19", "type": "redhatcve", "title": "CVE-2018-1000027", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2022-07-07T10:10:28", "id": "RH:CVE-2018-1000027", "href": "https://access.redhat.com/security/cve/cve-2018-1000027", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntucve": [{"lastseen": "2022-08-04T13:52:45", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to\n3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability\nin ESI Response Processing that can result in Denial of Service for all\nclients using the proxy.. This attack appear to be exploitable via Remote\nserver delivers an HTTP response payload containing valid but unusual ESI\nsyntax.. This vulnerability appears to have been fixed in 4.0.23 and later.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888719>\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-01-29T00:00:00", "type": "ubuntucve", "title": "CVE-2018-1000024", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024"], "modified": "2018-01-29T00:00:00", "id": "UB:CVE-2018-1000024", "href": "https://ubuntu.com/security/CVE-2018-1000024", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-04T13:52:46", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version prior to\nversion 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP\nResponse X-Forwarded-For header processing that can result in Denial of\nService to all clients of the proxy. This attack appear to be exploitable\nvia Remote HTTP server responding with an X-Forwarded-For header to certain\ntypes of HTTP request. This vulnerability appears to have been fixed in\n4.0.23 and later.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888720>\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-01-29T00:00:00", "type": "ubuntucve", "title": "CVE-2018-1000027", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2018-01-29T00:00:00", "id": "UB:CVE-2018-1000027", "href": "https://ubuntu.com/security/CVE-2018-1000027", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "cve": [{"lastseen": "2023-02-09T14:01:20", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-02-09T23:29:00", "type": "cve", "title": "CVE-2018-1000024", "cwe": ["NVD-CWE-noinfo"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024"], "modified": "2019-10-03T00:03:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:16.04", "cpe:/o:debian:debian_linux:7.0", "cpe:/o:canonical:ubuntu_linux:17.10", "cpe:/o:debian:debian_linux:8.0", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:canonical:ubuntu_linux:14.04", "cpe:/a:squid-cache:squid:3.5.27", "cpe:/a:squid-cache:squid:4.0.22"], "id": "CVE-2018-1000024", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-1000024", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}, "cpe23": ["cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:4.0.22:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe:2.3:a:squid-cache:squid:3.5.27:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-02-09T14:01:20", "description": "The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-02-09T23:29:00", "type": "cve", "title": "CVE-2018-1000027", "cwe": ["CWE-476"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2019-07-17T16:15:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:16.04", "cpe:/o:debian:debian_linux:7.0", "cpe:/o:canonical:ubuntu_linux:17.10", "cpe:/o:debian:debian_linux:8.0", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:canonical:ubuntu_linux:14.04"], "id": "CVE-2018-1000027", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-1000027", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}, "cpe23": ["cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}], "veracode": [{"lastseen": "2022-07-27T10:26:09", "description": "squid is vulnerable to Incorrect pointer handling when processing ESI Responses can lead to denial of service.\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-04-01T00:38:29", "type": "veracode", "title": "Incorrect Pointer Handling", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000024"], "modified": "2022-04-19T18:34:04", "id": "VERACODE:22861", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-22861/summary", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-07-27T10:26:13", "description": "squid is vulnerable to denial of service (DoS). The vulnerability exists through an incorrect pointer handling issue in HTTP processing and certificate download.\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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-04-01T00:38:30", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027"], "modified": "2022-04-19T18:39:12", "id": "VERACODE:22862", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-22862/summary", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "altlinux": [{"lastseen": "2023-03-31T16:56:21", "description": "3.5.28-alt1 built Aug. 27, 2019 Alexey Shabalin in task #236485\n\nJuly 15, 2019 Alexey Shabalin\n \n \n - Updated to 3.5.28.\n - Fixes:\n + CVE-2018-1000024 Crash processing SSL-Bumped traffic containing ESI\n + CVE-2018-1000027 Crash handling responses to internally generated requests\n + CVE-2018-1172 Crash in ESI Response processing\n + CVE-2018-19132 Fix memory leak when parsing SNMP packet\n + CVE-2019-12525 Fix Digest auth parameter parsing\n + CVE-2019-12529 Replace uudecode with libnettle base64 decoder\n + CVE-2019-13345 Multiple XSS issues in cachemgr.cgi\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": "2019-08-27T00:00:00", "type": "altlinux", "title": "Security fix for the ALT Linux 8 package squid version 3.5.28-alt1", "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-2018-1000024", "CVE-2018-1000027", "CVE-2018-1172", "CVE-2018-19132", "CVE-2019-12525", "CVE-2019-12529", "CVE-2019-13345"], "modified": "2019-08-27T00:00:00", "id": "5AD5A005B692F7B4EEBDB24FBCCE2038", "href": "https://packages.altlinux.org/en/p8/srpms/squid/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "checkpoint_advisories": [{"lastseen": "2022-10-26T14:52:24", "description": "A denial of service vulnerability exists in Squid Proxy. Successful exploitation of this vulnerability would allow remote attackers to cause denial of service on the affected system.", "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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2018-05-27T00:00:00", "type": "checkpoint_advisories", "title": "Squid Proxy Denial of Service (CVE-2018-1172; CVE-2018-1000027)", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-1000027", "CVE-2018-1172"], "modified": "2022-10-26T00:00:00", "id": "CPAI-2018-0513", "href": "", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}]}