CVE-2023-26463

Name	CVE-2023-26463
Description	strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.
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
strongswan (PTS)	bullseye (security), bullseye	5.9.1-1+deb11u4	fixed
	bookworm, bookworm (security)	5.9.8-5+deb12u1	fixed
	sid, trixie	5.9.13-2	fixed

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

Package	Type	Release	Fixed Version
strongswan	source	buster	(not affected)
strongswan	source	bullseye	(not affected)
strongswan	source	(unstable)	5.9.8-4

Notes

[bullseye] - strongswan <not-affected> (Vulnerable code not present)
[buster] - strongswan <not-affected> (Vulnerable code not present)
https://www.strongswan.org/blog/2023/03/02/strongswan-vulnerability-(cve-2023-26463).html
Introduced by: https://github.com/strongswan/strongswan/commit/63fd718915b5d246dcc5560382db0c30de309040 (5.9.8dr1)