ESB-2018.3479.2 - UPDATE [Linux][Ubuntu] SpamAssassin: Multiple vulnerabilities 2018-11-14

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.3479.2
                       SpamAssassin vulnerabilities
                             14 November 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           SpamAssassin
Publisher:         Ubuntu
Operating System:  Ubuntu
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-11781 CVE-2018-11780 CVE-2017-15705

Reference:         ESB-2018.3097

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3811-1
   http://www.ubuntu.com/usn/usn-3811-2

Comment: This bulletin contains two (2) Ubuntu security advisories.
         
         This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running SpamAssassin check for an updated version of the software 
         for their operating system.

Revision History:  November 14 2018: Added USN-3811-2 for Ubuntu 12.04 ESM.
                   November  7 2018: Initial Release

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==========================================================================
Ubuntu Security Notice USN-3811-1
November 06, 2018

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

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

- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in SpamAssassin.

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

Details:

It was discovered that SpamAssassin incorrectly handled certain unclosed
tags in emails. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2017-15705)

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 18.04 LTS:
  spamassassin                    3.4.2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  spamassassin                    3.4.2-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  spamassassin                    3.4.2-0ubuntu0.14.04.1

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-3811-1
  CVE-2017-15705, CVE-2018-11780, CVE-2018-11781

Package Information:
  https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.14.04.1

- --------------------------------------------------------------------------------

==========================================================================
Ubuntu Security Notice USN-3811-2
November 13, 2018

spamassassin vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

SpamAssassin could be made to crash if it received
a specially crafted file.

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 certain
  unclosed tags in emails. A remote attacker could possibly use this
  issue to cause a denial of service. (CVE-2017-15705)

Update instructions:

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

Ubuntu 12.04 ESM:
   spamassassin                                        3.3.2-2ubuntu1.2

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

References:
   https://usn.ubuntu.com/usn/usn-3811-2
   https://usn.ubuntu.com/usn/usn-3811-1
   CVE-2017-15705

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