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Red Hat Enterprise Linux 5: RHSA-2010:0556-01 Urgent Firefox Memory Bug

red hat
Calendar Grey July 23, 2010
Dist Redhat Esm H88
Important security notice for Red Hat Enterprise Linux addresses vulnerabilities in Firefox and XULRunner. Make sure to implement the necessary updates.
Updated firefox and xulrunner packages that fix a security issue are now available for Red Hat Enterprise Linux 5

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

Summary

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.
An invalid free flaw was found in Firefox's plugin handler. Malicious web content could result in an invalid memory pointer being freed, causing Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running the Firefox application. (CVE-2010-2755)
All Firefox users should upgrade to these updated packages, which contain a backported patch that corrects this issue. After installing the update, Firefox must be restarted for the changes to take effect.

Topics%20covered

Topics Covered

security advisory critical software update Red Hat Enterprise Linux firefox memory issue xulrunner

References

https://access.redhat.com/security/cve/CVE-2010-2755 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: firefox-3.6.7-3.el5.i386.rpm firefox-debuginfo-3.6.7-3.el5.i386.rpm xulrunner-1.9.2.7-3.el5.i386.rpm xulrunner-debuginfo-1.9.2.7-3.el5.i386.rpm
x86_64: firefox-3.6.7-3.el5.i386.rpm firefox-3.6.7-3.el5.x86_64.rpm firefox-debuginfo-3.6.7-3.el5.i386.rpm firefox-debuginfo-3.6.7-3.el5.x86_64.rpm xulrunner-1.9.2.7-3.el5.i386.rpm xulrunner-1.9.2.7-3.el5.x86_64.rpm xulrunner-debuginfo-1.9.2.7-3.el5.i386.rpm xulrunner-debuginfo-1.9.2.7-3.el5.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: xulrunner-debuginfo-1.9.2.7-3.el5.i386.rpm xulrunner-devel-1.9.2.7-3.el5.i386.rpm
x86_64: xulrunner-debuginfo-1.9.2.7-3.el5.i386.rpm xulrunner-debuginfo-1.9.2.7-3.el5.x86_64.rpm xulrunner-devel-1.9.2.7-3.el5.i386.rpm xulrunner-devel-1.9.2.7-3.el5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: firefox-3.6.7-3.el5.i386.rpm firefox-debuginfo-3.6.7-3.el5.i386.rpm xulrunner-1.9.2.7-3.el5.i386.rpm xulrunner-debuginfo-1.9.2.7-3.el5.i386.rpm xulrunner-devel-1.9.2.7-3.el5.i386.rpm
ia64: firefox-3.6.7-3.el5.ia64.rpm firefox-debuginfo-3.6.7-3.el5.ia64.rpm xulrunner-1.9.2.7-3.el5.ia64.rpm xulrunner-debuginfo-1.9.2.7-3.el5.ia64.rpm xulrunner-devel-1.9.2.7-3.el5.ia64.rpm
ppc: firefox-3.6.7-3.el5.ppc.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2010:0556-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0556.html
Issue date: 2010-07-23

Topic

Updated firefox and xulrunner packages that fix a security issue are nowavailable for Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having criticalsecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory critical software update Red Hat Enterprise Linux firefox memory issue xulrunner

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

617657 - CVE-2010-2755 Mozilla arbitrary free flaw

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