CVE-2023-52892

Name	CVE-2023-52892
Description	In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
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
php-phpseclib (PTS)	stretch (lts), stretch	2.0.30-2~deb9u1	vulnerable
	buster (security), buster, buster (lts)	2.0.30-2~deb10u3	vulnerable
	bullseye	2.0.30-2+deb11u2	vulnerable
	bullseye (security)	2.0.30-2+deb11u1	vulnerable
	bookworm	2.0.42-1+deb12u2	vulnerable
	bookworm (security)	2.0.42-1+deb12u1	vulnerable
	sid, trixie	2.0.47-3	fixed
php-phpseclib3 (PTS)	bookworm	3.0.19-1+deb12u3	vulnerable
	bookworm (security)	3.0.19-1+deb12u2	vulnerable
	sid, trixie	3.0.42-1	fixed
phpseclib (PTS)	jessie	0.3.8-1	vulnerable
	stretch (lts), stretch	1.0.19-1~deb9u2	vulnerable
	buster (security), buster, buster (lts)	1.0.19-3~deb10u3	vulnerable
	bullseye	1.0.19-3+deb11u2	vulnerable
	bullseye (security)	1.0.19-3+deb11u1	vulnerable
	bookworm	1.0.20-1+deb12u2	vulnerable
	bookworm (security)	1.0.20-1+deb12u1	vulnerable
	sid, trixie	1.0.23-3	fixed

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

Package	Type	Release	Fixed Version	Urgency
php-phpseclib	source	(unstable)	2.0.46-1
php-phpseclib3	source	(unstable)	3.0.33-1
phpseclib	source	jessie	(unfixed)	end-of-life
phpseclib	source	(unstable)	1.0.22-1

Notes

[bookworm] - phpseclib <no-dsa> (Minor issue; can be fixed via pu)
[bullseye] - phpseclib <no-dsa> (Minor issue; can be fixed via pu)
[bookworm] - php-phpseclib <no-dsa> (Minor issue; can be fixed via pu)
[bullseye] - php-phpseclib <no-dsa> (Minor issue; can be fixed via pu)
[bookworm] - php-phpseclib3 <no-dsa> (Minor issue; can be fixed via pu)
https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627 (1.0.22, 2.0.46, 3.0.33)
https://github.com/phpseclib/phpseclib/issues/1943
[buster] - php-phpseclib <postponed> (Minor issue; can be fixed in next update)
[stretch] - php-phpseclib <postponed> (Minor issue; can be fixed in next update)
[buster] - phpseclib <postponed> (Minor issue; can be fixed in next update)
[stretch] - phpseclib <postponed> (Minor issue; can be fixed in next update)