CVE-2020-14059

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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": "137B599B-80D1-4903-8791-40F11BC3FCD9", "versionEndExcluding": "5.0.3", "versionStartIncluding": "5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Squid 5.x before 5.0.3. Due to an Incorrect Synchronization, a Denial of Service can occur when processing objects in an SMP cache because of an Ipc::Mem::PageStack::pop ABA problem during access to the memory page/slot management list."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Squid versiones 5.x anteriores a 5.0.3. Debido a una Sincronizaci\u00f3n Incorrecta, puede ocurrir una Denegaci\u00f3n de Servicio al procesar objetos en una memoria cach\u00e9 SMP debido a un problema ABA de la funci\u00f3n Ipc::Mem::PageStack::pop durante el acceso a una lista de administraci\u00f3n de page/slot"}], "id": "CVE-2020-14059", "lastModified": "2026-06-17T02:54:10.030", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-06-30T19:15:11.223", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://www.squid-cache.org/Advisories/SQUID-2020_5.txt"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v5/changesets/squid-5-7a5af8db8e0377c06ed9ffbdcb1334389c7cd8ab.patch"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.squid-cache.org/Advisories/SQUID-2020_5.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v5/changesets/squid-5-7a5af8db8e0377c06ed9ffbdcb1334389c7cd8ab.patch"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210312-0001/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-662"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "squid: DoS when processing objects in an SMP cache due to an incorrect synchronization", "id": "1852558", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1852558"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-662", "details": ["An issue was discovered in Squid 5.x before 5.0.3. Due to an Incorrect Synchronization, a Denial of Service can occur when processing objects in an SMP cache because of an Ipc::Mem::PageStack::pop ABA problem during access to the memory page/slot management list.", "A flaw was found in squid. A denial of service attack is possible when processing objects in an SMP cache due to an incorrect synchronization. The highest threat from this vulnerability is to system availability."], "name": "CVE-2020-14059", "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": "Not affected", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "squid34", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "squid:4/squid", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-14059\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-14059\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-w7pw-2m4p-58hr"], "statement": "This issue only affects squid-5.x. Therefore versions of squid shipped with Red Hat products are not affected by this flaw.", "threat_severity": "Moderate"}

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