CVE-2020-14058

Name	CVE-2020-14058
Description	An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	buster	4.6-1+deb10u7	vulnerable
	buster (security)	4.6-1+deb10u10	vulnerable
	bullseye	4.13-10+deb11u2	fixed
	bullseye (security)	4.13-10+deb11u3	fixed
	bookworm	5.7-2	fixed
	bookworm (security)	5.7-2+deb12u1	fixed
	trixie	6.6-1	fixed
	sid	6.9-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
squid	source	(unstable)	4.12-1	unimportant
squid3	source	(unstable)	(unfixed)	unimportant

Notes

Squid 4: http://www.squid-cache.org/Versions/v4/changesets/squid-4-93f5fda134a2a010b84ffedbe833d670e63ba4be.patch
https://github.com/squid-cache/squid/security/advisories/GHSA-qvf6-485q-vm57
Squid in Debian builds without OpenSSL support