CVE-2021-29949

Name	CVE-2021-29949
Description	When loading the shared library that provides the OTR protocol implementation, Thunderbird will initially attempt to open it using a filename that isn't distributed by Thunderbird. If a computer has already been infected with a malicious library of the alternative filename, and the malicious library has been copied to a directory that is contained in the search path for executable libraries, then Thunderbird will load the incorrect library. This vulnerability affects Thunderbird < 78.9.1.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2632-1, DSA-4897-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
thunderbird (PTS)	bullseye	1:115.12.0-1~deb11u1	fixed
	bullseye (security)	1:128.6.0esr-1~deb11u1	fixed
	bookworm	1:128.5.0esr-1~deb12u1	fixed
	bookworm (security)	1:128.6.0esr-1~deb12u1	fixed
	sid, trixie	1:128.6.0esr-1	fixed

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

Package	Type	Release	Fixed Version	Origin
thunderbird	source	stretch	1:78.10.0-1~deb9u1	DLA-2632-1
thunderbird	source	buster	1:78.10.0-1~deb10u1	DSA-4897-1
thunderbird	source	(unstable)	1:78.10.0-1

https://www.mozilla.org/en-US/security/advisories/mfsa2021-13/#CVE-2021-29949