{"id":"CVE-2023-49286","summary":"Denial of Service in Helper Process management","details":"Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.","aliases":["GHSA-xggx-9329-3c27"],"modified":"2026-08-12T14:50:32.585094Z","published":"2023-12-04T22:53:44.827Z","related":["ALSA-2024:0046","ALSA-2024:0071","SUSE-SU-2023:4698-1","SUSE-SU-2023:4724-1","SUSE-SU-2023:4825-1","openSUSE-SU-2024:13631-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-253","CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49286.json"},"references":[{"type":"WEB","url":"http://www.squid-cache.org/Versions/v6/SQUID-2023_8.patch"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49286.json"},{"type":"ADVISORY","url":"https://github.com/squid-cache/squid/security/advisories/GHSA-xggx-9329-3c27"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49286"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240119-0004/"},{"type":"FIX","url":"https://github.com/squid-cache/squid/commit/6014c6648a2a54a4ecb7f952ea1163e0798f9264"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squid-cache/squid","events":[{"introduced":"0"},{"fixed":"6014c6648a2a54a4ecb7f952ea1163e0798f9264"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"6.4"}]}}],"versions":["SQUID_6_4","SQUID_6_3","SQUID_6_2","SQUID_6_1","SQUID_6_0_3","SQUID_6_0_2","SQUID_6_0_1","6.0.0-20210527-master-snapshot","5.0.6-20210527-snapshot","4.15-20210527-snapshot","6.0.0-20210525-master-snapshot","5.0.6-20210525-snapshot","4.15-20210525-snapshot","6.0.0-20210524-master-snapshot","6.0.0-20210523-master-snapshot","6.0.0-20210522-master-snapshot","5.0.6-20210524-snapshot","5.0.6-20210523-snapshot","5.0.6-20210522-snapshot","4.15-20210524-snapshot","4.15-20210523-snapshot","4.15-20210522-snapshot","M-staged-PR365","M-staged-PR370","M-staged-PR376","M-staged-PR375","M-staged-PR373","M-staged-PR372","M-staged-PR319","M-staged-PR366","M-staged-PR351","M-staged-PR342","M-staged-PR364","M-staged-PR359","M-staged-PR348","M-staged-PR345","M-staged-PR314","M-staged-PR306","M-staged-PR294","M-staged-PR299","M-staged-PR295","M-staged-PR293","M-staged-PR164","M-staged-PR276","M-staged-PR274","SQUID_3_5_27","M-staged-PR264","M-staged-PR268","M-staged-PR267","M-staged-PR266","M-staged-PR258","M-staged-PR230","M-staged-PR255","M-staged-PR252","M-staged-PR229","M-staged-PR241","M-staged-PR239","M-staged-PR242","M-staged-PR235","M-staged-PR238","M-staged-PR218","M-staged-PR237","M-staged-PR227","M-staged-PR202","M-staged-PR225","M-staged-PR220","M-staged-PR221","M-staged-PR210","M-staged-PR209","M-staged-PR208","M-staged-PR198","M-staged-PR206","M-staged-PR182","M-staged-PR195","M-staged-PR199","M-staged-PR200","M-staged-PR196","M-staged-PR193","M-staged-PR181","M-staged-PR189","M-staged-PR176","M-staged-PR186","M-staged-PR179","M-staged-PR170","M-staged-PR161","SQUID_4_0_16","SQUID_4_0_15","SQUID_4_0_14","SQUID_4_0_13","SQUID_4_0_12","SQUID_4_0_11","SQUID_4_0_10","SQUID_4_0_9","SQUID_4_0_8","SQUID_4_0_7","SQUID_4_0_6","SQUID_4_0_5","SQUID_4_0_4","SQUID_4_0_3","SQUID_4_0_2","SQUID_4_0_1","take00","SQUID_3_0_RC1","SQUID_3_0_PRE7","SQUID_3_0_PRE6","SQUID_3_0_PRE5","SQUID_3_0_PRE4","SQUID_3_0_PRE3","SQUID_3_0_PRE2","SQUID_3_0_PRE1","HISTORIC_RELEASES"],"database_specific":{"vanir_signatures_modified":"2026-08-12T14:50:32Z","vanir_signatures":[{"id":"CVE-2023-49286-6d6b339b","signature_type":"Line","signature_version":"v1","source":"https://github.com/squid-cache/squid/commit/6014c6648a2a54a4ecb7f952ea1163e0798f9264","target":{"file":"src/ipc.cc"},"deprecated":false,"digest":{"line_hashes":["168910324942989199999064472920978860794","31642949536680690415551713800936403591","196349303231352603213409180699614452763","166047664784494259026418673057741521309","259903887090428379696619366389585289717","141707226928726948943079524320221291185","75344335701222699619018925119922941416","232938750511746159368728538951421339862","172227612778647138303649007557305363154","57615831552351590610481538051244301752","21764096525914819630222744744340056374","112484087258599813274648459817230629483","151096893578886850320727613521577257913","143027954331363495569235615432303115011","317534407961939567772635454214246440250","163546160132567331067280241624989547118"],"threshold":0.9}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49286.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H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