A SpamAssassin security update has been released for Ubuntu Linux 14.04 ESM.

USN-4899-2: SpamAssassin vulnerability

=========================================================================
Ubuntu Security Notice USN-4899-2
April 12, 2021

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

- Ubuntu 14.04 ESM

Summary:

SpamAssassin could be made to run programs if it opened a specially crafted
file.

Software Description:
- spamassassin: Perl-based spam filter using text analysis

Details:

USN-4899-1 fixed a vulnerability in SpamAssassin. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Damian Lukowski 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.

Update instructions:

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

Ubuntu 14.04 ESM:
spamassassin 3.4.2-0ubuntu0.14.04.1+esm3

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

References:
  https://ubuntu.com/security/notices/USN-4899-2
  https://ubuntu.com/security/notices/USN-4899-1
CVE-2020-1946