CVEvulnerability
CVE-2021-28651
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-05-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-401
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.
Affected configurations
• squid-cache squid (>= 2.0 < 4.15)
• squid-cache squid (>= 5.0 < 5.0.6)
• debian debian linux 9.0
• debian debian linux 10.0
• fedoraproject fedora 33
• fedoraproject fedora 34
• netapp cloud manager
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- http://seclists.org/fulldisclosure/2023/Oct/14 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/10/11/3 Mailing List, Third Party Advisory
- https://bugs.squid-cache.org/show_bug.cgi?id=5104 Exploit, Issue Tracking, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-ch36-9jhx-phm4 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210716-0007/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4924 Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/14 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/10/11/3 Mailing List, Third Party Advisory
- https://bugs.squid-cache.org/show_bug.cgi?id=5104 Exploit, Issue Tracking, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-ch36-9jhx-phm4 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210716-0007/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4924 Third Party Advisory