[ASA-202105-10] squid: denial of service

2021-05-19T00:00:00

Description

Arch Linux Security Advisory ASA-202105-10 ========================================== Severity: High Date : 2021-05-19 CVE-ID : CVE-2021-28651 CVE-2021-28652 CVE-2021-28662 Package : squid Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1949 Summary ======= The package squid before version 4.15-1 is vulnerable to denial of service. Resolution ========== Upgrade to 4.15-1. # pacman -Syu "squid>=4.15-1" The problems have been fixed upstream in version 4.15. Workaround ========== - CVE-2021-28651 can be mitigated by disabling URN processing by the proxy, by adding these lines to squid.conf: acl URN proto URN http_access deny URN - CVE-2021-28652 can be mitigated by either disabling Cache Manager access entirely if not needed, by placing the following line in squid.conf before lines containing "allow": http_access deny manager or by hardening Cache Manager access privileges, for example: require authentication or other access controls in http_access beyond the default IP address restriction. - No known mitigations exist for CVE-2021-28662. Description =========== - CVE-2021-28651 (denial of service) Due to a buffer management bug Squid before version 4.15 is vulnerable to a denial of service attack against the server it is operating on. This attack is limited to proxies which attempt to resolve a "urn:" resource identifier. Support for this resolving is enabled by default in all Squid. - CVE-2021-28652 (denial of service) Due to an incorrect parser validation bug Squid before version 4.15 is vulnerable to a denial of Service attack against the Cache Manager API. - CVE-2021-28662 (denial of service) Due to an input validation bug Squid before version 4.15 is vulnerable to a denial of service against all clients using the proxy. Impact ====== A remote attacker can cause denial of service through crafted requests. References ========== https://github.com/squid-cache/squid/security/advisories/GHSA-ch36-9jhx-phm4 http://www.squid-cache.org/Versions/v4/changesets/squid-4-a975fd5aedc866629214aaaccb38376855351899.patch https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447 http://www.squid-cache.org/Versions/v4/changesets/squid-4-0003e3518dc95e4b5ab46b5140af79b22253048e.patch https://github.com/squid-cache/squid/security/advisories/GHSA-jjq6-mh2h-g39h http://www.squid-cache.org/Versions/v4/changesets/squid-4-b1c37c9e7b30d0efb5e5ccf8200f2a646b9c36f8.patch https://security.archlinux.org/CVE-2021-28651 https://security.archlinux.org/CVE-2021-28652 https://security.archlinux.org/CVE-2021-28662

Affected Package

OS	OS Version	Package Name	Package Version
ArchLinux	any	squid	4.15-1

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However, there is an unspecified attack \n methodology that can easily trigger a large amount of memory \n consumption.\n\nCVE-2021-28652\n\n Due to incorrect parser validation, it allows a Denial of Service \n attack against the Cache Manager API. This allows a trusted client \n to trigger memory leaks that. over time, lead to a Denial of \n Service via an unspecified short query string. This attack is \n limited to clients with Cache Manager API access privilege.\n\nCVE-2021-31806\n\n Due to a memory-management bug, it is vulnerable to a Denial of \n Service attack (against all clients using the proxy) via HTTP \n Range request processing.\n\nCVE-2021-31807\n\n An integer overflow problem allows a remote server to achieve \n Denial of Service when delivering responses to HTTP Range \n requests. The issue trigger is a header that can be expected to \n exist in HTTP traffic without any malicious intent.\n\nCVE-2021-31808\n\n Due to an input-validation bug, it is vulnerable to a Denial of \n Service attack (against all clients using the proxy). A client \n sends an HTTP Range request to trigger this.\n\nCVE-2021-33620\n\n Remote servers to cause a denial of service (affecting \n availability to all clients) via an HTTP response. The issue \n trigger is a header that can be expected to exist in HTTP traffic \n without any malicious intent by the server.\n\nFor Debian 9 stretch, these problems have been fixed in version\n3.5.23-5+deb9u7.\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": 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": "2021-06-14T06:36:59", "type": "debian", "title": "[SECURITY] [DLA 2685-1] 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": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-14T06:36:59", "id": "DEBIAN:DLA-2685-1:9A36F", "href": "https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "osv": [{"lastseen": "2022-08-10T07:20:11", "description": "\nMultiple denial of service vulnerabilities were discovered in the Squid\nproxy caching server.\n\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.6-1+deb10u6.\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": 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": "2021-06-01T00:00:00", "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": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31806", "CVE-2021-31808", "CVE-2021-28651", "CVE-2021-28662", "CVE-2021-28652", "CVE-2021-31807", "CVE-2021-33620"], "modified": "2022-08-10T07:20:04", "id": "OSV:DSA-4924-1", "href": "https://osv.dev/vulnerability/DSA-4924-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-08-05T05:19:09", "description": "\nSeveral vulnerabilities were discovered in Squid, a proxy caching\nserver.\n\n\n* [CVE-2021-28651](https://security-tracker.debian.org/tracker/CVE-2021-28651)\nDue to a buffer-management bug, it allows a denial of service.\n When resolving a request with the urn: scheme, the parser leaks a\n small amount of memory. However, there is an unspecified attack\n methodology that can easily trigger a large amount of memory\n consumption.\n* [CVE-2021-28652](https://security-tracker.debian.org/tracker/CVE-2021-28652)\nDue to incorrect parser validation, it allows a Denial of Service\n attack against the Cache Manager API. This allows a trusted client\n to trigger memory leaks that. over time, lead to a Denial of\n Service via an unspecified short query string. This attack is\n limited to clients with Cache Manager API access privilege.\n* [CVE-2021-31806](https://security-tracker.debian.org/tracker/CVE-2021-31806)\nDue to a memory-management bug, it is vulnerable to a Denial of\n Service attack (against all clients using the proxy) via HTTP\n Range request processing.\n* [CVE-2021-31807](https://security-tracker.debian.org/tracker/CVE-2021-31807)\nAn integer overflow problem allows a remote server to achieve\n Denial of Service when delivering responses to HTTP Range\n requests. The issue trigger is a header that can be expected to\n exist in HTTP traffic without any malicious intent.\n* [CVE-2021-31808](https://security-tracker.debian.org/tracker/CVE-2021-31808)\nDue to an input-validation bug, it is vulnerable to a Denial of\n Service attack (against all clients using the proxy). A client\n sends an HTTP Range request to trigger this.\n* [CVE-2021-33620](https://security-tracker.debian.org/tracker/CVE-2021-33620)\nRemote servers to cause a denial of service (affecting\n availability to all clients) via an HTTP response. The issue\n trigger is a header that can be expected to exist in HTTP traffic\n without any malicious intent by the server.\n\n\nFor Debian 9 stretch, these problems have been fixed in version\n3.5.23-5+deb9u7.\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", "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": "2021-06-28T00:00:00", "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": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-31806", "CVE-2021-31808", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31807", "CVE-2021-33620"], "modified": "2022-08-05T05:19:08", "id": "OSV:DLA-2685-1", "href": "https://osv.dev/vulnerability/DLA-2685-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "oraclelinux": [{"lastseen": "2022-07-12T18:39:49", "description": "libecap\nsquid\n[7:4.15-1]\n- new version 4.15\n- Resolves: #1964384 - squid:4 rebase to 4.15\n[7:4.11-5]\n- Resolves: #1944261 - CVE-2020-25097 squid:4/squid: improper input validation\n may allow a trusted client to perform HTTP Request Smuggling", "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": "2021-11-16T00:00:00", "type": "oraclelinux", "title": "squid:4 security, bug fix, and enhancement 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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-11-16T00:00:00", "id": "ELSA-2021-4292", "href": "http://linux.oracle.com/errata/ELSA-2021-4292.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-09-24T22:25:49", "description": "[7:3.5.20-17.0.1]\n- Mutiple CVE fixes for squid [Orabug: 33146289]\n- Resolves: CVE-2021-28651 squid: Bug 5104: Memory leak in RFC 2169 response parsing (#778)\n- Resolves: CVE-2021-28652 squid: Bug 5106: Broken cache manager URL parsing (#788)\n- Resolves: CVE-2021-31806,31807,31808 squid: Handle more Range requests (#790)\n- Resolves: CVE-2021-33620 squid: Handle more partial responses (#791)", "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": "2021-09-24T00:00:00", "type": "oraclelinux", "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"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-09-24T00:00:00", "id": "ELSA-2021-9465", "href": "http://linux.oracle.com/errata/ELSA-2021-9465.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhat": [{"lastseen": "2023-05-27T16:20:57", "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 (4.15). (BZ#1964384)\n\nSecurity Fix(es):\n\n* squid: denial of service in URN processing (CVE-2021-28651)\n\n* squid: denial of service issue in Cache Manager (CVE-2021-28652)\n\n* squid: denial of service in HTTP response processing (CVE-2021-28662)\n\n* squid: improper input validation in HTTP Range header (CVE-2021-31806)\n\n* squid: incorrect memory management in HTTP Range header (CVE-2021-31807)\n\n* squid: integer overflow in HTTP Range header (CVE-2021-31808)\n\n* squid: denial of service in HTTP response processing (CVE-2021-33620)\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 8.5 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", "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": "2021-11-09T08:56:14", "type": "redhat", "title": "(RHSA-2021:4292) Moderate: squid:4 security, bug fix, and enhancement 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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-11-09T14:10:11", "id": "RHSA-2021:4292", "href": "https://access.redhat.com/errata/RHSA-2021:4292", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "rocky": [{"lastseen": "2023-05-27T14:47:39", "description": "An update is available for squid, 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 (4.15). (BZ#1964384)\n\nSecurity Fix(es):\n\n* squid: denial of service in URN processing (CVE-2021-28651)\n\n* squid: denial of service issue in Cache Manager (CVE-2021-28652)\n\n* squid: denial of service in HTTP response processing (CVE-2021-28662)\n\n* squid: improper input validation in HTTP Range header (CVE-2021-31806)\n\n* squid: incorrect memory management in HTTP Range header (CVE-2021-31807)\n\n* squid: integer overflow in HTTP Range header (CVE-2021-31808)\n\n* squid: denial of service in HTTP response processing (CVE-2021-33620)\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 8.5 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", "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": "2021-11-09T08:56:14", "type": "rocky", "title": "squid:4 security, bug fix, and enhancement 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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-11-09T08:56:14", "id": "RLSA-2021:4292", "href": "https://errata.rockylinux.org/RLSA-2021:4292", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntu": [{"lastseen": "2023-05-27T15:01:01", "description": "## Releases\n\n * Ubuntu 21.04 \n * Ubuntu 20.10 \n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 ESM\n\n## Packages\n\n * squid \\- Web proxy cache server\n * squid3 \\- Web proxy cache server\n\nJoshua Rogers discovered that Squid incorrectly handled requests with the \nurn: scheme. A remote attacker could possibly use this issue to cause \nSquid to consume resources, leading to a denial of service. \n(CVE-2021-28651)\n\nJoshua Rogers discovered that Squid incorrectly handled requests to the \nCache Manager API. A remote attacker with access privileges could possibly \nuse this issue to cause Squid to consume resources, leading to a denial of \nservice. This issue was only addressed in Ubuntu 20.04 LTS, Ubuntu 20.10, \nand Ubuntu 21.04. (CVE-2021-28652)\n\nJoshua Rogers discovered that Squid incorrectly handled certain response \nheaders. A remote attacker could possibly use this issue to cause Squid to \ncrash, resulting in a denial of service. This issue was only affected \nUbuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-28662)\n\nJoshua Rogers discovered that Squid incorrectly handled range request \nprocessing. A remote attacker could possibly use this issue to cause Squid \nto crash, resulting in a denial of service. (CVE-2021-31806, \nCVE-2021-31807, CVE-2021-31808)\n\nJoshua Rogers discovered that Squid incorrectly handled certain HTTP \nresponses. A remote attacker could possibly use this issue to cause Squid \nto crash, resulting in a denial of service. (CVE-2021-33620)\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": "2021-06-03T00:00:00", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-03T00:00:00", "id": "USN-4981-1", "href": "https://ubuntu.com/security/notices/USN-4981-1", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "almalinux": [{"lastseen": "2023-05-27T17:12:37", "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 (4.15). (BZ#1964384)\n\nSecurity Fix(es):\n\n* squid: denial of service in URN processing (CVE-2021-28651)\n\n* squid: denial of service issue in Cache Manager (CVE-2021-28652)\n\n* squid: denial of service in HTTP response processing (CVE-2021-28662)\n\n* squid: improper input validation in HTTP Range header (CVE-2021-31806)\n\n* squid: incorrect memory management in HTTP Range header (CVE-2021-31807)\n\n* squid: integer overflow in HTTP Range header (CVE-2021-31808)\n\n* squid: denial of service in HTTP response processing (CVE-2021-33620)\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": "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": "2021-11-09T08:56:14", "type": "almalinux", "title": "Moderate: squid:4 security, bug fix, and enhancement 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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-11-09T13:01:13", "id": "ALSA-2021:4292", "href": "https://errata.almalinux.org/8/ALSA-2021-4292.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "photon": [{"lastseen": "2022-05-12T18:55:44", "description": "Updates of ['squid'] packages of Photon OS have been released.\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": "2021-07-19T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-0063", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-07-19T00:00:00", "id": "PHSA-2021-0063", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-63", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:47:13", "description": "Updates of ['squid'] packages of Photon OS have been released.\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": "2021-07-20T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-4.0-0063", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-07-20T00:00:00", "id": "PHSA-2021-4.0-0063", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-63", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T15:04:18", "description": "Updates of ['squid', 'containerd'] packages of Photon OS have been released.\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": "2021-07-20T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-3.0-0269", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-32760", "CVE-2021-33620"], "modified": "2021-07-20T00:00:00", "id": "PHSA-2021-3.0-0269", "href": "https://github.com/vmware/photon/wiki/Security-Update-3.0-269", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-12T18:41:43", "description": "Updates of ['containerd', 'squid'] packages of Photon OS have been released.\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": "2021-07-20T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-0269", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-32760", "CVE-2021-33620"], "modified": "2021-07-20T00:00:00", "id": "PHSA-2021-0269", "href": "https://github.com/vmware/photon/wiki/Security-Update-3.0-269", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "fedora": [{"lastseen": "2023-05-27T14:49:25", "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", "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": "2021-06-11T01:20:16", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: squid-4.15-1.fc33", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-11T01:20:16", "id": "FEDORA:C4C0D3091C28", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T14:49:25", "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", "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": "2021-06-11T01:16:02", "type": "fedora", "title": "[SECURITY] Fedora 34 Update: squid-5.0.6-1.fc34", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-11T01:16:02", "id": "FEDORA:CC54030AE7DD", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "mageia": [{"lastseen": "2023-06-05T15:16:10", "description": "Updated squid packages fix security vulnerabilities: Due to improper input validation Squid is vulnerable to an HTTP Request Smuggling attack. This problem allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by Squid security controls (CVE-2020-25097). Joshua Rogers discovered that Squid incorrectly handled requests with the urn: scheme. A remote attacker could possibly use this issue to causeSquid to consume resources, leading to a denial of service (CVE-2021-28651). Joshua Rogers discovered that Squid incorrectly handled requests to the Cache Manager API. A remote attacker with access privileges could possibly use this issue to cause Squid to consume resources, leading to a denial of service (CVE-2021-28652). Joshua Rogers discovered that Squid incorrectly handled certain response headers. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service (CVE-2021-28662). Joshua Rogers discovered that Squid incorrectly handled range request processing. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service (CVE-2021-31806, CVE-2021-31807, CVE-2021-31808). Joshua Rogers discovered that Squid incorrectly handled certain HTTP responses. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service (CVE-2021-33620). The squid package has been updated to version 4.15, fixing theese issues and other bugs. \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2021-06-08T16:46:03", "type": "mageia", "title": "Updated squid packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-25097", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-08T16:46:03", "id": "MGASA-2021-0237", "href": "https://advisories.mageia.org/MGASA-2021-0237.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "gentoo": [{"lastseen": "2023-06-05T15:09:39", "description": "### Background\n\nSquid is a full-featured Web proxy cache designed to run on Unix systems. It supports proxying and caching of HTTP, FTP, and other URLs, as well as SSL support, cache hierarchies, transparent caching, access control lists and many other features. \n\n### Description\n\nMultiple vulnerabilities have been discovered in Squid. Please review the CVE identifiers referenced below for details. \n\n### Impact\n\nA remote attacker could send a specially crafted request, possibly resulting in a Denial of Service condition or information leak. \n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll Squid users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=net-proxy/squid-4.15\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 8.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 4.0}, "published": "2021-05-26T00:00:00", "type": "gentoo", "title": "Squid: Multiple vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-25097", "CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808"], "modified": "2021-05-26T00:00:00", "id": "GLSA-202105-14", "href": "https://security.gentoo.org/glsa/202105-14", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "veracode": [{"lastseen": "2022-07-26T16:44:34", "description": "squid is vulnerable to denial of service. An attacker can cause a fatal error via the HTTP response of a squid cache, resulting in a denial of service condition.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2021-05-15T00:09:14", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2022-04-19T05:16:46", "id": "VERACODE:30445", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-30445/summary", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-07-26T16:52:25", "description": "squid is vulnerable to denial of service (DoS). The vulnerability exists through an improper parser validation, allowing a trusted client to cause memory leaks through the Cache Manager API.\n", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-15T00:52:25", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2022-04-19T05:16:44", "id": "VERACODE:30447", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-30447/summary", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}}, {"lastseen": "2022-07-26T16:34:03", "description": "squid is vulnerable to denial of service. The vulnerability exists due to a buffer management bug. \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": "2021-05-15T00:52:17", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2021-06-14T11:25:33", "id": "VERACODE:30446", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-30446/summary", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "debiancve": [{"lastseen": "2023-05-27T15:16:32", "description": "An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2021-05-27T12:15:00", "type": "debiancve", "title": "CVE-2021-28662", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2021-05-27T12:15:00", "id": "DEBIANCVE:CVE-2021-28662", "href": "https://security-tracker.debian.org/tracker/CVE-2021-28662", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T15:16:32", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-27T12:15:00", "type": "debiancve", "title": "CVE-2021-28652", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2021-05-27T12:15:00", "id": "DEBIANCVE:CVE-2021-28652", "href": "https://security-tracker.debian.org/tracker/CVE-2021-28652", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T15:16:32", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.", "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": "2021-05-27T12:15:00", "type": "debiancve", "title": "CVE-2021-28651", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2021-05-27T12:15:00", "id": "DEBIANCVE:CVE-2021-28651", "href": "https://security-tracker.debian.org/tracker/CVE-2021-28651", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntucve": [{"lastseen": "2023-05-28T13:29:36", "description": "An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a\nremote server sends a certain response header over HTTP or HTTPS, there is\na denial of service. This header can plausibly occur in benign network\ntraffic.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988891>\n\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | per upstream, all Squid older than 4.0 are not vulnerable.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2021-05-27T00:00:00", "type": "ubuntucve", "title": "CVE-2021-28662", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2021-05-27T00:00:00", "id": "UB:CVE-2021-28662", "href": "https://ubuntu.com/security/CVE-2021-28662", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-28T13:29:36", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to\nincorrect parser validation, it allows a Denial of Service attack against\nthe Cache Manager API. This allows a trusted client to trigger memory leaks\nthat. over time, lead to a Denial of Service via an unspecified short query\nstring. This attack is limited to clients with Cache Manager API access\nprivilege.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988892>\n * <https://bugs.squid-cache.org/show_bug.cgi?id=5106>\n\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | this issue only affects the Cache Manager, which is usually restricted to trusted clients only. The patch is intrusive to backport to 3.x versions, so we will not be fixing this issue in older releases. We recommend setting appropriate access control to limit connections from trusted clients.\n", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-27T00:00:00", "type": "ubuntucve", "title": "CVE-2021-28652", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2021-05-27T00:00:00", "id": "UB:CVE-2021-28652", "href": "https://ubuntu.com/security/CVE-2021-28652", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}}, {"lastseen": "2023-05-28T13:29:36", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a\nbuffer-management bug, it allows a denial of service. When resolving a\nrequest with the urn: scheme, the parser leaks a small amount of memory.\nHowever, there is an unspecified attack methodology that can easily trigger\na large amount of memory consumption.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988893>\n * <https://bugs.squid-cache.org/show_bug.cgi?id=5104>\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": "2021-05-27T00:00:00", "type": "ubuntucve", "title": "CVE-2021-28651", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2021-05-27T00:00:00", "id": "UB:CVE-2021-28651", "href": "https://ubuntu.com/security/CVE-2021-28651", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "redhatcve": [{"lastseen": "2023-05-27T17:17:07", "description": "An input validation flaw was found in Squid. This issue could allow a remote server to perform a denial of service against all clients using the proxy when delivering HTTP response messages. The highest threat from this vulnerability is to system availability.\n#### Mitigation\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. \n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2021-05-19T16:35:00", "type": "redhatcve", "title": "CVE-2021-28662", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2023-04-06T07:46:36", "id": "RH:CVE-2021-28662", "href": "https://access.redhat.com/security/cve/cve-2021-28662", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T17:17:07", "description": "A flaw was found in Squid. A parser validation bug could allow a trusted client with Cache Manager API access privileges to trigger memory leaks, potentially resulting in a denial of service against Squid. The highest threat from this vulnerability is to system availability.\n#### Mitigation\n\nTo mitigate this flaw Cache Manager access privileges can be hardened, for example by requiring authentication or other access controls in the "http_access" directive beyond the default IP address restriction. Alternatively, Cache Manager access can be disabled entirely if not needed. To do so, place the following line in `squid.conf` before lines containing "allow" : \n\n \n \n http_access deny manager \n \n", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-19T15:54:31", "type": "redhatcve", "title": "CVE-2021-28652", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2023-04-06T07:44:25", "id": "RH:CVE-2021-28652", "href": "https://access.redhat.com/security/cve/cve-2021-28652", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}}, {"lastseen": "2023-05-27T17:17:08", "description": "An input validation flaw was found in Squid. This issue could allow a malicious server in collaboration with a trusted client to consume arbitrarily large amounts of memory on the server running Squid. The highest threat from this vulnerability is to system availability.\n#### Mitigation\n\nIf possible, disable URN processing by adding the following lines in `squid.conf`: \n\n \n \n acl URN proto URN \n http_access deny URN \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": "2021-05-19T15:54:39", "type": "redhatcve", "title": "CVE-2021-28651", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2023-04-06T07:44:11", "id": "RH:CVE-2021-28651", "href": "https://access.redhat.com/security/cve/cve-2021-28651", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "cve": [{"lastseen": "2023-05-27T14:35:55", "description": "An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2021-05-27T12:15:00", "type": "cve", "title": "CVE-2021-28662", "cwe": ["CWE-116"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2022-04-19T03:56:00", "cpe": ["cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:34"], "id": "CVE-2021-28662", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-28662", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}, "cpe23": ["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"]}, {"lastseen": "2023-05-27T14:35:55", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-27T12:15:00", "type": "cve", "title": "CVE-2021-28652", "cwe": ["CWE-401"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2022-04-19T03:57:00", "cpe": ["cpe:/o:debian:debian_linux:10.0", "cpe:/o:debian:debian_linux:9.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:34"], "id": "CVE-2021-28652", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-28652", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}, "cpe23": ["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"]}, {"lastseen": "2023-05-27T14:36:02", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.", "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": "2021-05-27T12:15:00", "type": "cve", "title": "CVE-2021-28651", "cwe": ["CWE-401"], "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2021-09-14T17:07:00", "cpe": ["cpe:/o:debian:debian_linux:9.0", "cpe:/a:netapp:cloud_manager:-", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:33", "cpe:/o:fedoraproject:fedora:34"], "id": "CVE-2021-28651", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-28651", "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:9.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe:2.3:a:netapp:cloud_manager:-:*:*:*:*:*:*:*"]}], "alpinelinux": [{"lastseen": "2023-06-06T01:04:49", "description": "An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 3.6}, "published": "2023-06-06T01:03:40", "type": "alpinelinux", "title": "CVE-2021-28662", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28662"], "modified": "2023-06-06T01:03:40", "id": "ALPINE:CVE-2021-28662", "href": "https://security.alpinelinux.org/vuln/CVE-2021-28662", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-06T01:04:49", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.", "cvss3": {"exploitabilityScore": 1.2, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "baseScore": 4.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-06-06T01:03:40", "type": "alpinelinux", "title": "CVE-2021-28652", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 4.0, "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28652"], "modified": "2023-06-06T01:03:40", "id": "ALPINE:CVE-2021-28652", "href": "https://security.alpinelinux.org/vuln/CVE-2021-28652", "cvss": {"score": 4.0, "vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P"}}, {"lastseen": "2023-06-06T01:04:49", "description": "An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.", "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": "2023-06-06T01:03:40", "type": "alpinelinux", "title": "CVE-2021-28651", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2023-06-06T01:03:40", "id": "ALPINE:CVE-2021-28651", "href": "https://security.alpinelinux.org/vuln/CVE-2021-28651", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "cloudlinux": [{"lastseen": "2023-05-27T15:18:01", "description": "- CVE-2021-28651: fix memory leak leading to denial of service", "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": "2022-04-21T21:19:16", "type": "cloudlinux", "title": "Fix of CVE: CVE-2021-28651", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2022-04-21T21:19:16", "id": "CLSA-2022:1650575956", "href": "https://repo.cloudlinux.com/centos6-els/updateinfo.xml", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-07-28T14:36:06", "description": "- CVE-2021-28651: fix memory leak leading to denial of service", "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": "2021-07-20T09:58:36", "type": "cloudlinux", "title": "Fix of CVE: CVE-2021-28651", "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": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651"], "modified": "2021-07-20T09:58:36", "id": "CLSA-2021:1626775116", "href": "https://repo.cloudlinux.com/centos6-els/updateinfo.xml", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-05T16:23:32", "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", "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": "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"}, "impactScore": 6.4, "acInsufInfo": false, "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"}}], "amazon": [{"lastseen": "2023-06-03T17:14:20", "description": "**Issue Overview:**\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption. (CVE-2021-28651)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing. (CVE-2021-31806)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent. (CVE-2021-31807)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this. (CVE-2021-31808)\n\nSquid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)\n\nA flaw was found in squid. A trusted client can directly access the cache manager information, bypassing the manager ACL protection and resulting in information disclosure. (CVE-2022-41317)\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-migration-script-3.5.20-17.44.amzn1.i686 \n \u00a0\u00a0\u00a0 squid-3.5.20-17.44.amzn1.i686 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.44.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.44.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.44.amzn1.x86_64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.44.amzn1.x86_64 \n \u00a0\u00a0\u00a0 squid-3.5.20-17.44.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2021-28651](<https://access.redhat.com/security/cve/CVE-2021-28651>), [CVE-2021-28652](<https://access.redhat.com/security/cve/CVE-2021-28652>), [CVE-2021-31806](<https://access.redhat.com/security/cve/CVE-2021-31806>), [CVE-2021-31807](<https://access.redhat.com/security/cve/CVE-2021-31807>), [CVE-2021-31808](<https://access.redhat.com/security/cve/CVE-2021-31808>), [CVE-2021-33620](<https://access.redhat.com/security/cve/CVE-2021-33620>), [CVE-2022-41317](<https://access.redhat.com/security/cve/CVE-2022-41317>)\n\nMitre: [CVE-2021-28651](<https://vulners.com/cve/CVE-2021-28651>), [CVE-2021-28652](<https://vulners.com/cve/CVE-2021-28652>), [CVE-2021-31806](<https://vulners.com/cve/CVE-2021-31806>), [CVE-2021-31807](<https://vulners.com/cve/CVE-2021-31807>), [CVE-2021-31808](<https://vulners.com/cve/CVE-2021-31808>), [CVE-2021-33620](<https://vulners.com/cve/CVE-2021-33620>), [CVE-2022-41317](<https://vulners.com/cve/CVE-2022-41317>)\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": "2023-02-17T00:02:00", "type": "amazon", "title": "Medium: squid", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620", "CVE-2022-41317"], "modified": "2023-02-23T01:35:00", "id": "ALAS-2023-1687", "href": "https://alas.aws.amazon.com/ALAS-2023-1687.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2023-06-03T15:49:51", "description": "**Issue Overview:**\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption. (CVE-2021-28651)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege. (CVE-2021-28652)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing. (CVE-2021-31806)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent. (CVE-2021-31807)\n\nAn issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this. (CVE-2021-31808)\n\nSquid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server. (CVE-2021-33620)\n\nA flaw was found in squid. A trusted client can directly access the cache manager information, bypassing the manager ACL protection and resulting in information disclosure. (CVE-2022-41317)\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.amzn2.7.2.aarch64 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.7.2.aarch64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.7.2.aarch64 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.7.2.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.7.2.i686 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.7.2.i686 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.7.2.i686 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.7.2.i686 \n \n src: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.7.2.src \n \n x86_64: \n \u00a0\u00a0\u00a0 squid-3.5.20-17.amzn2.7.2.x86_64 \n \u00a0\u00a0\u00a0 squid-sysvinit-3.5.20-17.amzn2.7.2.x86_64 \n \u00a0\u00a0\u00a0 squid-migration-script-3.5.20-17.amzn2.7.2.x86_64 \n \u00a0\u00a0\u00a0 squid-debuginfo-3.5.20-17.amzn2.7.2.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2021-28651](<https://access.redhat.com/security/cve/CVE-2021-28651>), [CVE-2021-28652](<https://access.redhat.com/security/cve/CVE-2021-28652>), [CVE-2021-31806](<https://access.redhat.com/security/cve/CVE-2021-31806>), [CVE-2021-31807](<https://access.redhat.com/security/cve/CVE-2021-31807>), [CVE-2021-31808](<https://access.redhat.com/security/cve/CVE-2021-31808>), [CVE-2021-33620](<https://access.redhat.com/security/cve/CVE-2021-33620>), [CVE-2022-41317](<https://access.redhat.com/security/cve/CVE-2022-41317>)\n\nMitre: [CVE-2021-28651](<https://vulners.com/cve/CVE-2021-28651>), [CVE-2021-28652](<https://vulners.com/cve/CVE-2021-28652>), [CVE-2021-31806](<https://vulners.com/cve/CVE-2021-31806>), [CVE-2021-31807](<https://vulners.com/cve/CVE-2021-31807>), [CVE-2021-31808](<https://vulners.com/cve/CVE-2021-31808>), [CVE-2021-33620](<https://vulners.com/cve/CVE-2021-33620>), [CVE-2022-41317](<https://vulners.com/cve/CVE-2022-41317>)\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": "2023-02-17T00:11:00", "type": "amazon", "title": "Medium: squid", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28651", "CVE-2021-28652", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620", "CVE-2022-41317"], "modified": "2023-02-22T01:52:00", "id": "ALAS2-2023-1950", "href": "https://alas.aws.amazon.com/AL2/ALAS-2023-1950.html", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}]}

[ASA-202105-10] squid: denial of service

Description

Affected Package

Related