CVE-2020-1946

Name	CVE-2020-1946
Description	In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, 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-2615-1, DSA-4879-1
Debian Bugs	985962

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
spamassassin (PTS)	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	Origin	Debian Bugs
spamassassin	source	stretch	3.4.2-1~deb9u4	DLA-2615-1
spamassassin	source	buster	3.4.2-1+deb10u3	DSA-4879-1
spamassassin	source	(unstable)	3.4.5~pre1-1		985962

Notes

https://www.openwall.com/lists/oss-security/2021/03/24/3
https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7793 (not public)
https://svn.apache.org/viewvc/spamassassin/branches/3.4/lib/Mail/SpamAssassin/Conf/Parser.pm?r1=1864416&r2=1876381&pathrev=1876381