CVE-2020-1946

NameCVE-2020-1946
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2615-1, DSA-4879-1
NVD severityhigh
Debian Bugs985962

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
spamassassin (PTS)stretch3.4.2-1~deb9u3vulnerable
stretch (security)3.4.2-1~deb9u4fixed
buster3.4.2-1+deb10u2vulnerable
buster (security)3.4.2-1+deb10u3fixed
bullseye, sid3.4.5~pre1-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
spamassassinsourcestretch3.4.2-1~deb9u4DLA-2615-1
spamassassinsourcebuster3.4.2-1+deb10u3DSA-4879-1
spamassassinsource(unstable)3.4.5~pre1-1985962

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

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