Pango HarfBuzz Engine Buffer Overflow Vulnerability

http://www.securityfocus.com/bid/49723

Security Info

Bugtraq ID:	49723
Class:	Boundary Condition Error
CVE:	CVE-2011-3193
Remote:	Yes
Local:	No
Published:	Sep 21 2011 12:00AM
Updated:	Jul 12 2012 05:00PM
Credit:	Josh Bressers
Vulnerable:	Ubuntu Ubuntu Linux 11.04 powerpc Ubuntu Ubuntu Linux 11.04 i386 Ubuntu Ubuntu Linux 11.04 ARM Ubuntu Ubuntu Linux 11.04 amd64 Ubuntu Ubuntu Linux 10.04 sparc Ubuntu Ubuntu Linux 10.04 powerpc Ubuntu Ubuntu Linux 10.04 i386 Ubuntu Ubuntu Linux 10.04 ARM Ubuntu Ubuntu Linux 10.04 amd64 RedHat Enterprise Linux WS 4 RedHat Enterprise Linux ES 4 RedHat Enterprise Linux Desktop Workstation 5 client RedHat Enterprise Linux Desktop version 4 Red Hat Enterprise Linux Workstation Optional 6 Red Hat Enterprise Linux Workstation 6 Red Hat Enterprise Linux Server Optional 6 Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux HPC Node Optional 6 Red Hat Enterprise Linux HPC Node 6 Red Hat Enterprise Linux Desktop Optional 6 Red Hat Enterprise Linux Desktop 6 Red Hat Enterprise Linux Desktop 5 client Red Hat Enterprise Linux AS 4 Red Hat Enterprise Linux 5 Server Pango Pango 1.2.5 Pango Pango 1.2.4 Pango Pango 1.2.3 Pango Pango 1.28.3 Avaya Proactive Contact 5.0 Avaya Message Networking 3.1 Avaya IQ 5.2 Avaya IQ 5.1.1 Avaya IQ 5.1 Avaya IQ 5 Avaya Communication Server 1000M Signaling Server 7.5 Avaya Communication Server 1000M Signaling Server 7.0 Avaya Communication Server 1000M Signaling Server 6.0 Avaya Communication Server 1000M 7.5 Avaya Communication Server 1000M 7.0 Avaya Communication Server 1000M 6.0 Avaya Communication Server 1000E Signaling Server 7.5 Avaya Communication Server 1000E Signaling Server 7.0 Avaya Communication Server 1000E Signaling Server 6.0 Avaya Communication Server 1000E 7.5 Avaya Communication Server 1000E 7.0 Avaya Communication Server 1000E 6.0 Avaya Aura System Platform 6.0.2 Avaya Aura System Platform 6.0.1 Avaya Aura System Platform 6.0 SP3 Avaya Aura System Platform 6.0 SP2 Avaya Aura System Platform 6.0 Avaya Aura System Platform 1.1 Avaya Aura System Manager 6.1.3 Avaya Aura System Manager 6.1.2 Avaya Aura System Manager 6.1.1 Avaya Aura System Manager 6.1 SP2 Avaya Aura System Manager 6.1 Sp1 Avaya Aura System Manager 6.1 Avaya Aura System Manager 6.0 SP1 Avaya Aura System Manager 6.0 Avaya Aura System Manager 5.2 Avaya Aura Session Manager 6.1.3 Avaya Aura Session Manager 6.1.2 Avaya Aura Session Manager 6.1.1 Avaya Aura Session Manager 6.1 SP2 Avaya Aura Session Manager 6.1 Sp1 Avaya Aura Session Manager 6.1 Avaya Aura Session Manager 6.0 SP1 Avaya Aura Session Manager 6.0 Avaya Aura Session Manager 5.2 SP2 Avaya Aura Session Manager 5.2 SP1 Avaya Aura Session Manager 5.2 Avaya Aura Session Manager 1.1 Avaya Aura Session Manager 1.0 Avaya Aura Presence Services 6.1.1 Avaya Aura Presence Services 6.1 Avaya Aura Presence Services 6.0 Avaya Aura Communication Manager Utility Services 6.1 + Avaya Communication Manager Server DEFINITY Server SI/CS + Avaya Communication Manager Server S8100 + Avaya Communication Manager Server S8300 + Avaya Communication Manager Server S8500 + Avaya Communication Manager Server S8700 Avaya Aura Communication Manager Utility Services 6.0 + Avaya Communication Manager Server DEFINITY Server SI/CS + Avaya Communication Manager Server S8100 + Avaya Communication Manager Server S8300 + Avaya Communication Manager Server S8500 + Avaya Communication Manager Server S8700

Not Vulnerable:	Avaya Message Networking 5.2

Security Discussion

Pango is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data before using the data to allocate memory buffers.

An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.

Proof of Concept and Security Exploits

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: vuldb@securityfocus.com.

Security Solution(s)

Solution:
Updates are available. Please see the references for more information.

Security References(s)

References:

Bug 733118 - (CVE-2011-3193) CVE-2011-3193 qt/harfbuzz buffer overflow (Red Hat Bugzilla)
Pango Homepage (Pango)
ASA-2011-321 pango security update (RHSA-2011-1326) (Avaya)
frysk security update (RHSA-2011-1327) (Avaya)

Emagined Security Blog featuring Dr. Eugene Schultz

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