CVE-2020-12823

Name	CVE-2020-12823
Description	OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2212-1
Debian Bugs	960620

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openconnect (PTS)	buster, buster (security)	8.02-1+deb10u1	vulnerable
	bullseye	8.10-2	fixed
	bookworm, sid	9.01-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openconnect	source	jessie	6.00-2+deb8u2		DLA-2212-1
openconnect	source	(unstable)	8.10-1	unimportant		960620

https://gitlab.com/openconnect/openconnect/-/merge_requests/108
Only triggerable by local certs, which are under the control of the user