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Red Hat 6 RHSA-2011:0309-01 Critical: Pango Memory Reallocation Flaw

red hat
Calendar Grey March 2, 2011
Dist Redhat Esm H88
Critical updates for pango have been announced, targeting Red Hat Enterprise Linux 6, to address a significant security vulnerability that requires immediate action.
Updated pango packages that fix one security issue are now available for Red Hat Enterprise Linux 6

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/kb/docs/DOC-11259

Summary

Pango is a library used for the layout and rendering of internationalized text.
It was discovered that Pango did not check for memory reallocation failures in the hb_buffer_ensure() function. An attacker able to trigger a reallocation failure by passing sufficiently large input to an application using Pango could use this flaw to crash the application or, possibly, execute arbitrary code with the privileges of the user running the application. (CVE-2011-0064)
Red Hat would like to thank the Mozilla Security Team for reporting this issue.
All pango users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, you must restart your system or restart the X server for the update to take effect.

Topics%20covered

Topics Covered

security advisory update critical Red Hat Enterprise Linux memory issue pango

References

https://access.redhat.com/security/cve/CVE-2011-0064 https://access.redhat.com/security/updates/classification/#critical

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: pango-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm
x86_64: pango-1.28.1-3.el6_0.5.i686.rpm pango-1.28.1-3.el6_0.5.x86_64.rpm pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-devel-1.28.1-3.el6_0.5.i686.rpm
x86_64: pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.x86_64.rpm pango-devel-1.28.1-3.el6_0.5.i686.rpm pango-devel-1.28.1-3.el6_0.5.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: pango-1.28.1-3.el6_0.5.i686.rpm pango-1.28.1-3.el6_0.5.x86_64.rpm pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.x86_64.rpm pango-devel-1.28.1-3.el6_0.5.i686.rpm pango-devel-1.28.1-3.el6_0.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: pango-1.28.1-3.el6_0.5.i686.rpm pango-debuginfo-1.28.1-3.el6_0.5.i686.rpm pango-devel-1.28.1-3.el6_0.5.i686.rpm
ppc64: pango-1.28.1-3.el6_0.5.ppc.rpm pango-1.28.1-3.el6_0.5.ppc64.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:0309-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0309.html
Issue date: 2011-03-01

Topic

Updated pango packages that fix one security issue are now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having criticalsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory update critical Red Hat Enterprise Linux memory issue pango

Relevant Releases Architectures

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 HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

678563 - CVE-2011-0064 pango: missing memory reallocation failure checking in hb_buffer_ensure

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