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.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_misc
http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch
Patch, Third Party Advisory x_refsource_confirm
https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/12/23/2
Scores
CVSS v3
7.5
EPSS
0.0112
EPSS Percentile
78.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-295
Status
published
Products (2)
fedoraproject/fedora
35
squid-cache/squid
5.0.6 - 5.2
Published
Oct 18, 2021
Tracked Since
Feb 18, 2026