CVE-2020-24606

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{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "77F27CCE-271D-4EFC-A417-DAEAB0DDA82A", "versionEndExcluding": "4.13", "versionStartIncluding": "3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC0541DD-366F-47F9-981B-525697B1D166", "versionEndExcluding": "5.0.4", "versionStartIncluding": "5.0.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493", "vulnerable": true}, {"criteria": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "matchCriteriaId": "B009C22E-30A4-4288-BCF6-C3E81DEAF45A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"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."}, {"lang": "es", "value": "Squid versiones anteriores a 4.13 y versiones 5.x anteriores a 5.0.4, permite que un peer de confianza lleve a cabo una Denegaci\u00f3n de Servicio mediante el consumo de todos los ciclos de la CPU disponibles durante el manejo de un mensaje de respuesta de Cache Digest dise\u00f1ado. Esto solo ocurre cuando cache_peer es usado con la funcionalidad cache digest. El problema se presenta porque el bloqueo en vivo de peerDigestHandleReply() en el archivo peer_digest.cc maneja inapropiadamente EOF."}], "id": "CVE-2020-24606", "lastModified": "2026-06-17T03:05:51.130", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"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, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", 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"af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4551-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2020/dsa-4751"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:4082", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "squid-7:3.5.20-17.el7_9.4", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-30T00:00:00Z"}, {"advisory": "RHSA-2020:4743", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "squid:4-8030020200828070549.30b713e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-11-04T00:00:00Z"}], "bugzilla": {"description": "squid: Improper input validation could result in a DoS", "id": "1871705", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871705"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-20", "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.", "A flaw was found in squid. A denial of service attack is possible due to an improper input validation. The highest threat from this vulnerability is to system availability."], "mitigation": {"lang": "en:us", "value": "Add the no-digest option to all cache_peer lines in squid.conf"}, "name": "CVE-2020-24606", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid34", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2020-08-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-24606\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-24606\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg"], "threat_severity": "Moderate"}

{}