USN-4237-1: SpamAssassin vulnerabilities

13 January 2020

spamassassin vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS


Several security issues were fixed in SpamAssassin.

Software Description

  • spamassassin - Perl-based spam filter using text analysis


It was discovered that SpamAssassin incorrectly handled certain CF files. If a user or automated system were tricked into using a specially-crafted CF file, a remote attacker could possibly run arbitrary code. (CVE-2018-11805)

It was discovered that SpamAssassin incorrectly handled certain messages. A remote attacker could possibly use this issue to cause SpamAssassin to consume resources, resulting in a denial of service. (CVE-2019-12420)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.10
spamassassin - 3.4.2-1ubuntu0.19.10.1
Ubuntu 19.04
spamassassin - 3.4.2-1ubuntu0.19.04.1
Ubuntu 18.04 LTS
spamassassin - 3.4.2-0ubuntu0.18.04.2
Ubuntu 16.04 LTS
spamassassin - 3.4.2-0ubuntu0.16.04.2

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.