CVE-2021-28651
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 7.4%
exploitation probability
7.4%top 6% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · n/aReferences
https://bugs.squid-cache.org/show_bug.cgi?id=5104http://seclists.org/fulldisclosure/2023/Oct/14https://github.com/squid-cache/squid/security/advisories/GHSA-ch36-9jhx-phm4https://lists.debian.org/debian-lts-announce/2021/06/msg00014.htmlhttps://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://security.netapp.com/advisory/ntap-20210716-0007/https://www.debian.org/security/2021/dsa-4924http://www.openwall.com/lists/oss-security/2023/10/11/3