[USN-4899-2] SpamAssassin vulnerability

[Leonidas S. Barbosa]

==========================================================================
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
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