CVE-2020-24661

Name	CVE-2020-24661
Description	GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed certificates) when the client system is not configured to use a system-provided PKCS#11 store. This allows a meddler in the middle to present a different invalid certificate to intercept incoming and outgoing mail.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
geary (PTS)	buster	0.12.4-4	vulnerable
	bullseye	3.38.1-1	fixed
	bookworm, sid	43.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
geary	source	(unstable)	3.38.0.1-1

Notes

[buster] - geary <no-dsa> (Minor issue)
[stretch] - geary <no-dsa> (Minor issue)
https://gitlab.gnome.org/GNOME/geary/-/issues/866
https://gitlab.gnome.org/GNOME/geary/commit/0d957559bbb4be81870c9fafba1c74f0926f59a3