VulnerabilityModified
CVE-2021-41611
This problem allows a remote server to obtain security trust well improperly.
HIGH 7.5EPSS 2.95%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 2.95% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- squid-cache/squid · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/12/23/2Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patchVendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5rPatch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/
- http://www.openwall.com/lists/oss-security/2021/12/23/2Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patchVendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5rPatch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.