{"id":"CVE-2021-28651","state":"PUBLISHED","title":"An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the","description":"An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.","publishedAt":"2021-05-27T00:00:00.000Z","updatedAt":"2024-08-03T21:47:32.975Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://bugs.squid-cache.org/show_bug.cgi?id=5104","https://github.com/squid-cache/squid/security/advisories/GHSA-ch36-9jhx-phm4","https://www.debian.org/security/2021/dsa-4924","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/","https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html","https://security.netapp.com/advisory/ntap-20210716-0007/","http://www.openwall.com/lists/oss-security/2023/10/11/3","http://seclists.org/fulldisclosure/2023/Oct/14"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:19.096Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/28xxx/CVE-2021-28651.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-28651","state":"PUBLISHED","datePublished":"2021-05-27T00:00:00.000Z","dateUpdated":"2024-08-03T21:47:32.975Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-03-17T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. 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