CVE-2020-1931

Name	CVE-2020-1931
Description	A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious Configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian Lukowski at credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted places.
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-2107-1, DSA-4615-1
Debian Bugs	950258

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
spamassassin (PTS)	jessie, jessie (lts)	3.4.2-0+deb8u4	fixed
	stretch (security), stretch (lts), stretch	3.4.2-1~deb9u4	fixed
	buster (security), buster, buster (lts)	3.4.2-1+deb10u3	fixed
	bullseye	3.4.6-1	fixed
	bookworm	4.0.0-6	fixed
	sid, trixie	4.0.1-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
spamassassin	source	wheezy	(unfixed)	end-of-life
spamassassin	source	jessie	3.4.2-0+deb8u3		DLA-2107-1
spamassassin	source	stretch	3.4.2-1~deb9u3		DSA-4615-1
spamassassin	source	buster	3.4.2-1+deb10u2		DSA-4615-1
spamassassin	source	(unstable)	3.4.4~rc1-1			950258

Notes

https://svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.4.txt
https://www.openwall.com/lists/oss-security/2020/01/30/2
https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7784 (restricted)