[USN-3811-3] SpamAssassin vulnerabilities

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[USN-3811-3] SpamAssassin vulnerabilities

Leonidas S. Barbosa
==========================================================================
Ubuntu Security Notice USN-3811-3
December 05, 2018

spamassassin vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in SpamAssassin.

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

Details:

USN-3811-1 fixed a vulnerability in spamassassin. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that SpamAssassin incorrectly handled the PDFInfo
 plugin. A remote attacker could possibly use this issue to execute
 arbitrary code. (CVE-2018-11780)

 It was discovered that SpamAssassin incorrectly handled meta rule
 syntax. A local attacker could possibly use this issue to execute
 arbitrary code. (CVE-2018-11781)

Update instructions:

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

Ubuntu 12.04 ESM:
  spamassassin                    3.4.2-0ubuntu0.12.04.2

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
  https://usn.ubuntu.com/usn/usn-3811-3
  https://usn.ubuntu.com/usn/usn-3811-1
  CVE-2018-11780, CVE-2018-11781
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