CVE-2023-50761

Name	CVE-2023-50761
Description	The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.
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-3698-1, DSA-5582-1

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)	1:128.4.3esr-1~deb11u1	fixed
	bookworm	1:115.16.0esr-1~deb12u1	fixed
	bookworm (security)	1:128.4.0esr-1~deb12u1	fixed
	trixie	1:128.4.2esr-1	fixed
	sid	1:128.4.3esr-1	fixed

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

Package	Type	Release	Fixed Version	Origin
thunderbird	source	buster	1:115.6.0-1~deb10u1	DLA-3698-1
thunderbird	source	bullseye	1:115.6.0-1~deb11u1	DSA-5582-1
thunderbird	source	bookworm	1:115.6.0-1~deb12u1	DSA-5582-1
thunderbird	source	(unstable)	1:115.6.0-1

https://www.mozilla.org/en-US/security/advisories/mfsa2023-55/#CVE-2023-50761