CVE-2019-6690

Name	CVE-2019-6690
Description	python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended. To perform the attack, the passphrase to gnupg must be controlled by the adversary and the ciphertext should be trusted. Related to a "CWE-20: Improper Input Validation" issue affecting the affect functionality component.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1675-1, DLA-2862-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-gnupg (PTS)	bullseye	0.4.6-1	fixed
	bookworm	0.4.9-1	fixed
	forky, sid, trixie	0.5.4-1	fixed

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

Package	Type	Release	Fixed Version	Origin
python-gnupg	source	jessie	0.3.6-1+deb8u1	DLA-1675-1
python-gnupg	source	stretch	0.3.9-1+deb9u1	DLA-2862-1
python-gnupg	source	(unstable)	0.4.4-1

Notes

https://github.com/stigtsp/CVE-2019-6690-python-gnupg-vulnerability
https://github.com/vsajip/python-gnupg/commit/39eca266dd837e2ad89c94eb17b7a6f50b25e7cf#diff-88b99bb28683bd5b7e3a204826ead112
https://github.com/vsajip/python-gnupg/commit/3003b654ca1c29b0510a54b9848571b3ad57df19#diff-88b99bb28683bd5b7e3a204826ead112