CVE-2019-11755

Name	CVE-2019-11755
Description	A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.
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-1997-1, DSA-4571-1

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)	1:128.4.3esr-1~deb12u1	fixed
	sid, trixie	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	experimental	1:68.1.1-1~exp1
thunderbird	source	jessie	1:68.2.2-1~deb8u1	DLA-1997-1
thunderbird	source	stretch	1:68.2.2-1~deb9u1	DSA-4571-1
thunderbird	source	buster	1:68.2.2-1~deb10u1	DSA-4571-1
thunderbird	source	(unstable)	1:68.2.1-1

https://www.mozilla.org/en-US/security/advisories/mfsa2019-32/#CVE-2019-11755