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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: pidgin security update
Advisory ID:       RHSA-2014:0139-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0139.html
Issue date:        2014-02-05
CVE Names:         CVE-2012-6152 CVE-2013-6477 CVE-2013-6478 
                   CVE-2013-6479 CVE-2013-6481 CVE-2013-6482 
                   CVE-2013-6483 CVE-2013-6484 CVE-2013-6485 
                   CVE-2013-6487 CVE-2013-6489 CVE-2013-6490 
                   CVE-2014-0020 
=====================================================================

1. Summary:

Updated pidgin packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

Pidgin is an instant messaging program which can log in to multiple
accounts on multiple instant messaging networks simultaneously.

A heap-based buffer overflow flaw was found in the way Pidgin processed
certain HTTP responses. A malicious server could send a specially crafted
HTTP response, causing Pidgin to crash or potentially execute arbitrary
code with the permissions of the user running Pidgin. (CVE-2013-6485)

Multiple heap-based buffer overflow flaws were found in several protocol
plug-ins in Pidgin (Gadu-Gadu, MXit, SIMPLE). A malicious server could send
a specially crafted message, causing Pidgin to crash or potentially execute
arbitrary code with the permissions of the user running Pidgin.
(CVE-2013-6487, CVE-2013-6489, CVE-2013-6490)

Multiple denial of service flaws were found in several protocol plug-ins in
Pidgin (Yahoo!, XMPP, MSN, stun, IRC). A remote attacker could use these
flaws to crash Pidgin by sending a specially crafted message.
(CVE-2012-6152, CVE-2013-6477, CVE-2013-6481, CVE-2013-6482, CVE-2013-6484,
CVE-2014-0020)

It was found that the Pidgin XMPP protocol plug-in did not verify the
origin of "iq" replies. A remote attacker could use this flaw to spoof an
"iq" reply, which could lead to injection of fake data or cause Pidgin to
crash via a NULL pointer dereference. (CVE-2013-6483)

A flaw was found in the way Pidgin parsed certain HTTP response headers.
A remote attacker could use this flaw to crash Pidgin via a specially
crafted HTTP response header. (CVE-2013-6479)

It was found that Pidgin crashed when a mouse pointer was hovered over a
long URL. A remote attacker could use this flaw to crash Pidgin by sending
a message containing a long URL string. (CVE-2013-6478)

Red Hat would like to thank the Pidgin project for reporting these issues.
Upstream acknowledges Thijs Alkemade, Robert Vehse, Jaime Breva Ribes,
Jacob Appelbaum of the Tor Project, Daniel Atallah, Fabian Yamaguchi and
Christian Wressnegger of the University of Goettingen, Matt Jones of
Volvent, and Yves Younan, Ryan Pentney, and Pawel Janic of Sourcefire VRT
as the original reporters of these issues.

All pidgin users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. Pidgin must be
restarted for this update to take effect.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1056473 - CVE-2012-6152 pidgin: DoS when decoding non-UTF-8 strings in Yahoo protocol plugin
1056479 - CVE-2013-6477 pidgin: DoS when handling timestamps in the XMPP plugin
1056904 - CVE-2013-6478 pidgin: DoS when rendering long URLs
1056907 - CVE-2013-6479 pidgin: DoS when parsing certain HTTP response headers
1056908 - CVE-2013-6481 pidgin: DoS caused due to OOB read in Yahoo protocol plugin
1056913 - CVE-2013-6482 pidgin: DoS via multiple null pointer dereferences in MSN protocol plugin
1056978 - CVE-2013-6483 pidgin: Possible spoofing using iq replies in XMPP protocol plugin
1057481 - CVE-2013-6484 pidgin: DoS via specially-crafted stun messages
1057484 - CVE-2013-6485 pidgin: Heap-based buffer overflow when parsing chunked HTTP responses
1057489 - CVE-2013-6487 pidgin: Heap-based buffer overflow in Gadu-Gadu protocol plugin
1057490 - CVE-2013-6489 pidgin: Heap-based buffer overflow in MXit emoticon parsing
1057498 - CVE-2013-6490 pidgin: Heap-based buffer overflow in SIMPLE protocol plugin
1057502 - CVE-2014-0020 pidgin: DoS in IRC protocol plugin due to arguement parsing

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/pidgin-2.6.6-32.el5.src.rpm

i386:
finch-2.6.6-32.el5.i386.rpm
libpurple-2.6.6-32.el5.i386.rpm
libpurple-perl-2.6.6-32.el5.i386.rpm
libpurple-tcl-2.6.6-32.el5.i386.rpm
pidgin-2.6.6-32.el5.i386.rpm
pidgin-debuginfo-2.6.6-32.el5.i386.rpm
pidgin-perl-2.6.6-32.el5.i386.rpm

x86_64:
finch-2.6.6-32.el5.i386.rpm
finch-2.6.6-32.el5.x86_64.rpm
libpurple-2.6.6-32.el5.i386.rpm
libpurple-2.6.6-32.el5.x86_64.rpm
libpurple-perl-2.6.6-32.el5.x86_64.rpm
libpurple-tcl-2.6.6-32.el5.x86_64.rpm
pidgin-2.6.6-32.el5.i386.rpm
pidgin-2.6.6-32.el5.x86_64.rpm
pidgin-debuginfo-2.6.6-32.el5.i386.rpm
pidgin-debuginfo-2.6.6-32.el5.x86_64.rpm
pidgin-perl-2.6.6-32.el5.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/pidgin-2.6.6-32.el5.src.rpm

i386:
finch-devel-2.6.6-32.el5.i386.rpm
libpurple-devel-2.6.6-32.el5.i386.rpm
pidgin-debuginfo-2.6.6-32.el5.i386.rpm
pidgin-devel-2.6.6-32.el5.i386.rpm

x86_64:
finch-devel-2.6.6-32.el5.i386.rpm
finch-devel-2.6.6-32.el5.x86_64.rpm
libpurple-devel-2.6.6-32.el5.i386.rpm
libpurple-devel-2.6.6-32.el5.x86_64.rpm
pidgin-debuginfo-2.6.6-32.el5.i386.rpm
pidgin-debuginfo-2.6.6-32.el5.x86_64.rpm
pidgin-devel-2.6.6-32.el5.i386.rpm
pidgin-devel-2.6.6-32.el5.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/pidgin-2.7.9-27.el6.src.rpm

i386:
libpurple-2.7.9-27.el6.i686.rpm
pidgin-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm

x86_64:
libpurple-2.7.9-27.el6.i686.rpm
libpurple-2.7.9-27.el6.x86_64.rpm
pidgin-2.7.9-27.el6.x86_64.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/pidgin-2.7.9-27.el6.src.rpm

i386:
finch-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-perl-2.7.9-27.el6.i686.rpm
libpurple-tcl-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-docs-2.7.9-27.el6.i686.rpm
pidgin-perl-2.7.9-27.el6.i686.rpm

x86_64:
finch-2.7.9-27.el6.i686.rpm
finch-2.7.9-27.el6.x86_64.rpm
finch-devel-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.x86_64.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.x86_64.rpm
libpurple-perl-2.7.9-27.el6.x86_64.rpm
libpurple-tcl-2.7.9-27.el6.x86_64.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.x86_64.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.x86_64.rpm
pidgin-docs-2.7.9-27.el6.x86_64.rpm
pidgin-perl-2.7.9-27.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/pidgin-2.7.9-27.el6.src.rpm

i386:
finch-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.i686.rpm
libpurple-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-perl-2.7.9-27.el6.i686.rpm
libpurple-tcl-2.7.9-27.el6.i686.rpm
pidgin-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-docs-2.7.9-27.el6.i686.rpm
pidgin-perl-2.7.9-27.el6.i686.rpm

ppc64:
finch-2.7.9-27.el6.ppc.rpm
finch-2.7.9-27.el6.ppc64.rpm
finch-devel-2.7.9-27.el6.ppc.rpm
finch-devel-2.7.9-27.el6.ppc64.rpm
libpurple-2.7.9-27.el6.ppc.rpm
libpurple-2.7.9-27.el6.ppc64.rpm
libpurple-devel-2.7.9-27.el6.ppc.rpm
libpurple-devel-2.7.9-27.el6.ppc64.rpm
libpurple-perl-2.7.9-27.el6.ppc64.rpm
libpurple-tcl-2.7.9-27.el6.ppc64.rpm
pidgin-2.7.9-27.el6.ppc64.rpm
pidgin-debuginfo-2.7.9-27.el6.ppc.rpm
pidgin-debuginfo-2.7.9-27.el6.ppc64.rpm
pidgin-devel-2.7.9-27.el6.ppc.rpm
pidgin-devel-2.7.9-27.el6.ppc64.rpm
pidgin-docs-2.7.9-27.el6.ppc64.rpm
pidgin-perl-2.7.9-27.el6.ppc64.rpm

x86_64:
finch-2.7.9-27.el6.i686.rpm
finch-2.7.9-27.el6.x86_64.rpm
finch-devel-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.x86_64.rpm
libpurple-2.7.9-27.el6.i686.rpm
libpurple-2.7.9-27.el6.x86_64.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.x86_64.rpm
libpurple-perl-2.7.9-27.el6.x86_64.rpm
libpurple-tcl-2.7.9-27.el6.x86_64.rpm
pidgin-2.7.9-27.el6.x86_64.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.x86_64.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.x86_64.rpm
pidgin-docs-2.7.9-27.el6.x86_64.rpm
pidgin-perl-2.7.9-27.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/pidgin-2.7.9-27.el6.src.rpm

i386:
libpurple-2.7.9-27.el6.i686.rpm
pidgin-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm

x86_64:
libpurple-2.7.9-27.el6.i686.rpm
libpurple-2.7.9-27.el6.x86_64.rpm
pidgin-2.7.9-27.el6.x86_64.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/pidgin-2.7.9-27.el6.src.rpm

i386:
finch-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-perl-2.7.9-27.el6.i686.rpm
libpurple-tcl-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-docs-2.7.9-27.el6.i686.rpm
pidgin-perl-2.7.9-27.el6.i686.rpm

x86_64:
finch-2.7.9-27.el6.i686.rpm
finch-2.7.9-27.el6.x86_64.rpm
finch-devel-2.7.9-27.el6.i686.rpm
finch-devel-2.7.9-27.el6.x86_64.rpm
libpurple-devel-2.7.9-27.el6.i686.rpm
libpurple-devel-2.7.9-27.el6.x86_64.rpm
libpurple-perl-2.7.9-27.el6.x86_64.rpm
libpurple-tcl-2.7.9-27.el6.x86_64.rpm
pidgin-debuginfo-2.7.9-27.el6.i686.rpm
pidgin-debuginfo-2.7.9-27.el6.x86_64.rpm
pidgin-devel-2.7.9-27.el6.i686.rpm
pidgin-devel-2.7.9-27.el6.x86_64.rpm
pidgin-docs-2.7.9-27.el6.x86_64.rpm
pidgin-perl-2.7.9-27.el6.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-6152.html
https://www.redhat.com/security/data/cve/CVE-2013-6477.html
https://www.redhat.com/security/data/cve/CVE-2013-6478.html
https://www.redhat.com/security/data/cve/CVE-2013-6479.html
https://www.redhat.com/security/data/cve/CVE-2013-6481.html
https://www.redhat.com/security/data/cve/CVE-2013-6482.html
https://www.redhat.com/security/data/cve/CVE-2013-6483.html
https://www.redhat.com/security/data/cve/CVE-2013-6484.html
https://www.redhat.com/security/data/cve/CVE-2013-6485.html
https://www.redhat.com/security/data/cve/CVE-2013-6487.html
https://www.redhat.com/security/data/cve/CVE-2013-6489.html
https://www.redhat.com/security/data/cve/CVE-2013-6490.html
https://www.redhat.com/security/data/cve/CVE-2014-0020.html
https://access.redhat.com/security/updates/classification/#moderate
http://www.pidgin.im/news/security/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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