Operating System:

[Ubuntu]

Published:

16 January 2020

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.0166
                 USN-4237-2: SpamAssassin vulnerabilities
                              16 January 2020

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

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

Product:           SpamAssassin
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-12420 CVE-2018-11805 

Reference:         ESB-2020.0132
                   ESB-2020.0109
                   ESB-2019.4667.2

Original Bulletin: 
   https://usn.ubuntu.com/4237-2/

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USN-4237-2: SpamAssassin vulnerabilities
15 January 2020

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

  o Ubuntu 14.04 ESM
  o Ubuntu 12.04 ESM

Summary

Several security issues were fixed in SpamAssassin.

Software Description

  o spamassassin - Perl-based spam filter using text analysis

Details

USN-4237-1 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. (CVE-2018-11805)

It was discovered that SpamAssassin incorrectly handled certain messages. A
remote attacker could possibly use this issue to cause SpamAssassin to consume
resources, resulting in a denial of service. (CVE-2019-12420)

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+esm1
Ubuntu 12.04 ESM
    spamassassin - 3.4.2-0ubuntu0.12.04.3

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o USN-4237-1
  o CVE-2018-11805
  o CVE-2019-12420

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