Scientific Linux: Important pidgin Security Update for Buffer Overflow

Date: Mon, 25 May 2009 10:46:53 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Important: pidgin on SL3.x, SL4.x,
 SL5.x i386/x86_64
Comments: To: "This email address is being protected from spambots. You need JavaScript enabled to view it."
 

Synopsis:	Important: pidgin security update
Issue date:	2009-05-22
CVE Names:	CVE-2009-1373 CVE-2009-1374 CVE-2009-1375
 CVE-2009-1376

A buffer overflow flaw was found in the way Pidgin initiates file
transfers when using the Extensible Messaging and Presence Protocol
(XMPP). If a Pidgin client initiates a file transfer, and the remote
target sends a malformed response, it could cause Pidgin to crash or,
potentially, execute arbitrary code with the permissions of the user
running Pidgin. This flaw only affects accounts using XMPP, such as
Jabber and Google Talk. (CVE-2009-1373)

A denial of service flaw was found in Pidgin's QQ protocol decryption
handler. When the QQ protocol decrypts packet information, heap data can
be overwritten, possibly causing Pidgin to crash. (CVE-2009-1374)

A flaw was found in the way Pidgin's PurpleCircBuffer object is
expanded. If the buffer is full when more data arrives, the data stored
in this buffer becomes corrupted. This corrupted data could result in
confusing or misleading data being presented to the user, or possibly
crash Pidgin. (CVE-2009-1375)

If a Pidgin client receives a specially-crafted MSN message, it may be
possible to execute arbitrary code with the permissions of the user
running Pidgin. (CVE-2009-1376)

Note: By default, when using an MSN account, only users on your buddy
list can send you messages. This prevents arbitrary MSN users from
exploiting this flaw.

Pidgin must be restarted for this update to take effect.

SL 3.0.x

 SRPMS:
pidgin-1.5.1-3.el3.src.rpm
 i386:
pidgin-1.5.1-3.el3.i386.rpm
 x86_64:
pidgin-1.5.1-3.el3.x86_64.rpm

SL 4.x

 SRPMS:
pidgin-2.5.5-2.el4.src.rpm
 i386:
finch-2.5.5-2.el4.i386.rpm
finch-devel-2.5.5-2.el4.i386.rpm
libpurple-2.5.5-2.el4.i386.rpm
libpurple-devel-2.5.5-2.el4.i386.rpm
libpurple-perl-2.5.5-2.el4.i386.rpm
libpurple-tcl-2.5.5-2.el4.i386.rpm
pidgin-2.5.5-2.el4.i386.rpm
pidgin-devel-2.5.5-2.el4.i386.rpm
pidgin-perl-2.5.5-2.el4.i386.rpm
 x86_64:
finch-2.5.5-2.el4.i386.rpm
finch-devel-2.5.5-2.el4.i386.rpm
libpurple-2.5.5-2.el4.i386.rpm
libpurple-devel-2.5.5-2.el4.i386.rpm
libpurple-perl-2.5.5-2.el4.i386.rpm
libpurple-tcl-2.5.5-2.el4.i386.rpm
pidgin-2.5.5-2.el4.i386.rpm
pidgin-devel-2.5.5-2.el4.i386.rpm
pidgin-perl-2.5.5-2.el4.i386.rpm

SL 5.x

 SRPMS:
pidgin-2.5.5-3.el5.src.rpm
 i386:
finch-2.5.5-3.el5.i386.rpm
finch-devel-2.5.5-3.el5.i386.rpm
libpurple-2.5.5-3.el5.i386.rpm
libpurple-devel-2.5.5-3.el5.i386.rpm
libpurple-perl-2.5.5-3.el5.i386.rpm
libpurple-tcl-2.5.5-3.el5.i386.rpm
pidgin-2.5.5-3.el5.i386.rpm
pidgin-devel-2.5.5-3.el5.i386.rpm
pidgin-perl-2.5.5-3.el5.i386.rpm
 x86_64:
finch-2.5.5-3.el5.i386.rpm
finch-2.5.5-3.el5.x86_64.rpm
finch-devel-2.5.5-3.el5.i386.rpm
finch-devel-2.5.5-3.el5.x86_64.rpm
libpurple-2.5.5-3.el5.i386.rpm
libpurple-2.5.5-3.el5.x86_64.rpm
libpurple-devel-2.5.5-3.el5.i386.rpm
libpurple-devel-2.5.5-3.el5.x86_64.rpm
libpurple-perl-2.5.5-3.el5.x86_64.rpm
libpurple-tcl-2.5.5-3.el5.x86_64.rpm
pidgin-2.5.5-3.el5.i386.rpm
pidgin-2.5.5-3.el5.x86_64.rpm
pidgin-devel-2.5.5-3.el5.i386.rpm
pidgin-devel-2.5.5-3.el5.x86_64.rpm
pidgin-perl-2.5.5-3.el5.x86_64.rpm

-Connie Sieh
-Troy Dawson