A SpamAssassin security update is available for Ubuntu Linux 14.04 ESM and 12.04 ESM.

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Ubuntu Security Notice USN-4265-2
February 04, 2020

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in SpamAssassin.

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

Details:

USN-4265-1 fixed several vulnerabilities in SpamAssassin. This update provides
the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.

Original advisory details:

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.

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+esm2

Ubuntu 12.04 ESM:
spamassassin 3.4.2-0ubuntu0.12.04.4

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

References:
  https://usn.ubuntu.com/4265-2
  https://usn.ubuntu.com/4265-1
CVE-2020-1930, CVE-2020-1931