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Category:   Application (Instant Messaging/IRC/Chat)  >   Gaim Vendors:   Gaim.sourceforge.net
(Red Hat Issues Fix) Gaim SNAC Packet Parsing Error Lets Remote Users Deny Service
SecurityTracker Alert ID:  1013955
SecurityTracker URL:  http://securitytracker.com/id/1013955
CVE Reference:   CVE-2005-0472   (Links to External Site)
Date:  May 12 2005
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.1.3
Description:   A denial of service vulnerability was reported in Gaim in the processing of SNAC packets. A remote user can cause the target client to freeze.

A remote AIM or ICQ user can send specially crafted SNAC packets to the target user to cause the target user's Gaim client to enter an infinite loop. The standard AIM and ICQ clients cannot create these packets. Instead, a custom client is required to exploit this flaw.

Impact:   A remote user can cause the target user's Gaim client to freeze.
Solution:   Red Hat has released a fix.

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1 gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4 gaim-0.59.9-4.el2.i386.rpm

ia64:
5f32a394431f368a7c9e049f4ebb7494 gaim-0.59.9-4.el2.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1 gaim-0.59.9-4.el2.src.rpm

ia64:
5f32a394431f368a7c9e049f4ebb7494 gaim-0.59.9-4.el2.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1 gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4 gaim-0.59.9-4.el2.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1 gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4 gaim-0.59.9-4.el2.i386.rpm

Vendor URL:  gaim.sourceforge.net/security/?id=10 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  2.1

Message History:   This archive entry is a follow-up to the message listed below.
Feb 18 2005 Gaim SNAC Packet Parsing Error Lets Remote Users Deny Service



 Source Message Contents

Subject:  [RHSA-2005:432-01] Critical: gaim security update


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- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Critical: gaim security update
Advisory ID:       RHSA-2005:432-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-432.html
Issue date:        2005-05-11
Updated on:        2005-05-11
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-0472 CAN-2005-1261
- ---------------------------------------------------------------------

1. Summary:

An updated gaim package that fixes security issues is now available for Red
Hat Enterprise Linux 2.1.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Problem description:

The Gaim application is a multi-protocol instant messaging client.

A stack based buffer overflow bug was found in the way gaim processes a
message containing a URL. A remote attacker could send a carefully crafted
message resulting in the execution of arbitrary code on a victim's machine.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2005-1261 to this issue.

A bug in the way Gaim processes SNAC packets was discovered. It is possible
that a remote attacker could send a specially crafted SNAC packet to a Gaim
client, causing the client to stop responding. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0472
to this issue.

Users of Gaim are advised to upgrade to this updated package which contains
gaim version 0.59.9 with backported patches to correct these issues.

4. Solution:

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

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1  gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4  gaim-0.59.9-4.el2.i386.rpm

ia64:
5f32a394431f368a7c9e049f4ebb7494  gaim-0.59.9-4.el2.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1  gaim-0.59.9-4.el2.src.rpm

ia64:
5f32a394431f368a7c9e049f4ebb7494  gaim-0.59.9-4.el2.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1  gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4  gaim-0.59.9-4.el2.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/gaim-0.59.9-4.el2.src.rpm
f01435d610c70ca301e25da9790e73a1  gaim-0.59.9-4.el2.src.rpm

i386:
dd0961f496e0be18e79c1893e5b061f4  gaim-0.59.9-4.el2.i386.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://www.redhat.com/security/team/key/#package

6. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0472
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1261

7. Contact:

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

Copyright 2005 Red Hat, Inc.

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