CVE-2021-41611

EUVD-2021-28625
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 83%
Affected Products (NVD)
VendorProductVersion
squid-cachesquid
5.0.6 ≤
𝑥
< 5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
squid
bookworm
5.7-2+deb12u2
fixed
bookworm (security)
5.7-2+deb12u2
fixed
bullseye
4.13-10+deb11u3
not-affected
bullseye (security)
4.13-10+deb11u3
fixed
buster
not-affected
sid
6.12-1
fixed
trixie
6.12-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
squid
bionic
dne
focal
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
trusty
dne
xenial
dne
squid3
bionic
not-affected
focal
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
not-affected
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2021/12/23/2
http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch
https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/
http://www.openwall.com/lists/oss-security/2021/12/23/2
http://www.squid-cache.org/Versions/v6/changesets/squid-6-43d6b5c81b88ec2256b430c69a872a1e4f324e4a.patch
https://github.com/squid-cache/squid/security/advisories/GHSA-47m4-g3mv-9q5r
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CWQ2WKDWTSO47S3F6XJJ6HGG2ULWEAE4/