gsd-2020-24606
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2020-24606", "description": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.", "id": "GSD-2020-24606", "references": [ "https://www.suse.com/security/cve/CVE-2020-24606.html", "https://www.debian.org/security/2020/dsa-4751", "https://access.redhat.com/errata/RHSA-2020:4743", "https://access.redhat.com/errata/RHSA-2020:4082", "https://ubuntu.com/security/CVE-2020-24606", "https://advisories.mageia.org/CVE-2020-24606.html", "https://alas.aws.amazon.com/cve/html/CVE-2020-24606.html", "https://linux.oracle.com/cve/CVE-2020-24606.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2020-24606" ], "details": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.", "id": "GSD-2020-24606", "modified": "2023-12-13T01:22:12.020103Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-24606", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:C/UI:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg", "refsource": "MISC", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg" }, { "name": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch", "refsource": "MISC", "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch" }, { "name": "DSA-4751", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4751" }, { "name": "USN-4477-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4477-1/" }, { "name": "FEDORA-2020-73af8655eb", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/" }, { "name": "FEDORA-2020-63f3bd656e", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/" }, { "name": "openSUSE-SU-2020:1346", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html" }, { "name": "openSUSE-SU-2020:1369", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html" }, { "name": "FEDORA-2020-6c58bff862", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/" }, { "name": "USN-4551-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4551-1/" }, { "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210219-0007/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210219-0007/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0007/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210226-0007/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0006/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210226-0006/" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.13", "versionStartIncluding": "3.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.0.4", "versionStartIncluding": "5.0.1", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-24606" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-667" } ] } ] }, "references": { "reference_data": [ { "name": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch", "refsource": "MISC", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch" }, { "name": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg", "refsource": "MISC", "tags": [ "Third Party Advisory" ], "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg" }, { "name": "DSA-4751", "refsource": "DEBIAN", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2020/dsa-4751" }, { "name": "USN-4477-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4477-1/" }, { "name": "FEDORA-2020-73af8655eb", "refsource": "FEDORA", "tags": [ "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/" }, { "name": "FEDORA-2020-63f3bd656e", "refsource": "FEDORA", "tags": [ "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/" }, { "name": "openSUSE-SU-2020:1346", "refsource": "SUSE", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html" }, { "name": "openSUSE-SU-2020:1369", "refsource": "SUSE", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html" }, { "name": "FEDORA-2020-6c58bff862", "refsource": "FEDORA", "tags": [ "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/" }, { "name": "USN-4551-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4551-1/" }, { "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210219-0007/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210219-0007/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0006/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210226-0006/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0007/", "refsource": "CONFIRM", "tags": [ "Broken Link" ], "url": "https://security.netapp.com/advisory/ntap-20210226-0007/" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "HIGH", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } }, "lastModifiedDate": "2021-07-21T11:39Z", "publishedDate": "2020-08-24T18:15Z" } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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