CVEvulnerability
CVE-2021-33620
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-05-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-20
Description
Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.
Affected configurations
• squid-cache squid (< 4.15)
• squid-cache squid (>= 5.0 < 5.0.6)
• fedoraproject fedora 33
• fedoraproject fedora 34
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation 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
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-1e05a85bd28c22c9ca5d3ac9f5e86d6269ec0a8c.patch Mailing List, Patch, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-8af775ed98bfd610f9ce762fe177e01b2675588c.patch Mailing List, Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-572g-rvwr-6c7f 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
- 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
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-1e05a85bd28c22c9ca5d3ac9f5e86d6269ec0a8c.patch Mailing List, Patch, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-8af775ed98bfd610f9ce762fe177e01b2675588c.patch Mailing List, Patch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-572g-rvwr-6c7f 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