CVE-2021-41611

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
NISTNIST
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
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 83%
VendorProductVersion
squid-cachesquid
5.0.6 ≤
𝑥
< 5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
squid
bullseye (security)
4.13-10+deb11u3
fixed
bullseye
4.13-10+deb11u3
not-affected
buster
not-affected
bookworm
5.7-2+deb12u2
fixed
bookworm (security)
5.7-2+deb12u2
fixed
sid
6.12-1
fixed
trixie
6.12-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
squid
jammy
not-affected
impish
not-affected
hirsute
not-affected
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
squid3
jammy
dne
impish
dne
hirsute
dne
focal
dne
bionic
not-affected
xenial
not-affected
trusty
dne
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/