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ESB-2015.0003 - [Win][UNIX/Linux][Debian] pyyaml: Denial of service - Remote/unauthenticated

Date: 05 January 2015
References: ESB-2014.2393  ESB-2015.0137  ESB-2015.0204  ESB-2015.0249  ESB-2015.0427  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.0003
                          pyyaml security update
                              5 January 2015

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

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

Product:           pyyaml
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-9130  

Reference:         ESB-2014.2393

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-3115

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- - -------------------------------------------------------------------------
Debian Security Advisory DSA-3115-1                   security@debian.org
http://www.debian.org/security/                        Moritz Muehlenhoff
December 29, 2014                      http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : pyyaml
CVE ID         : CVE-2014-9130
Debian Bug     : 772815

Jonathan Gray and Stanislaw Pitucha found an assertion failure in the 
way wrapped strings are parsed in Python-YAML, a YAML parser and emitter 
for Python. An attacker able to load specially crafted YAML input into an
application using python-yaml could cause the application to crash.

For the stable distribution (wheezy), this problem has been fixed in
version 3.10-4+deb7u1.

For the upcoming stable distribution (jessie), this problem has been
fixed in version 3.11-2.

For the unstable distribution (sid), this problem has been fixed in
version 3.11-2.

We recommend that you upgrade your pyyaml packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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===========================================================================
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