CVE-2020-8450

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"dateReserved": "2020-01-30T00:00:00.000Z", "dateUpdated": "2024-08-04T09:56:28.485Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

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Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Squid versiones anteriores a 4.10. Debido a una administraci\u00f3n del b\u00fafer incorrecta, un cliente remoto puede causar un desbordamiento del b\u00fafer en una instancia de Squid que act\u00faa como un proxy inverso."}], "id": "CVE-2020-8450", "lastModified": "2026-06-17T03:26:24.343", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-02-04T20:15:14.777", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00010.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.squid-cache.org/Advisories/SQUID-2020_1.txt"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch"}, {"source": "cve@mitre.org", 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{"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: Buffer overflow in reverse-proxy configurations", "id": "1798552", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1798552"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-119", "details": ["An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.", "A flaw was found in squid. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy."], "name": "CVE-2020-8450", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "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": "2020-02-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-8450\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-8450"], "statement": "Although the squid packages for Red Hat Enterprise Linux 6 through 8 are affected, they are compiled with FORTIFY_SOURCE, which in this case limits the impact of the buffer overflow to an application termination. This only affects deployments acting as reverse proxy with a http_port 'accel' or 'vhost' (squid 2.x and 3.x) or http_port 'accel' configuration (squid 4.x).", "threat_severity": "Moderate"}

{}