CVEvulnerability
CVE-2021-41611
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-10-18
- 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:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-295
Description
An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients, allowing access to unsafe or hijacked services.
Affected configurations
• squid-cache squid (>= 5.0.6 < 5.2)
• fedoraproject fedora 35
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- http://www.openwall.com/lists/oss-security/2021/12/23/2 Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ lists.fedoraproject.org
- http://www.openwall.com/lists/oss-security/2021/12/23/2 Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/ lists.fedoraproject.org