Critical: firefox security update

Synopsis

Critical: firefox security update

Type/Severity

Security Advisory: Critical

Topic

An updated firefox package that fixes various security issues is now
available for Red Hat Enterprise Linux 4 and 5.

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

Description

Mozilla Firefox is an open source Web browser.

Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause Firefox to crash or,
potentially, execute arbitrary code as the user running Firefox.
(CVE-2009-0040, CVE-2009-0771, CVE-2009-0772, CVE-2009-0773, CVE-2009-0774,
CVE-2009-0775)

Several flaws were found in the way malformed content was processed. A
website containing specially-crafted content could, potentially, trick a
Firefox user into surrendering sensitive information. (CVE-2009-0776,
CVE-2009-0777)

For technical details regarding these flaws, please see the Mozilla
security advisories for Firefox 3.0.7. You can find a link to the Mozilla
advisories in the References section of this errata.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.0.7, and which correct these issues. After installing the
update, Firefox must be restarted for the changes to take effect.

Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

  • Red Hat Enterprise Linux Server 5 x86_64
  • Red Hat Enterprise Linux Server 5 ia64
  • Red Hat Enterprise Linux Server 5 i386
  • Red Hat Enterprise Linux Server 4 x86_64
  • Red Hat Enterprise Linux Server 4 ia64
  • Red Hat Enterprise Linux Server 4 i386
  • Red Hat Enterprise Linux Server - Extended Update Support 5.3 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 5.3 ia64
  • Red Hat Enterprise Linux Server - Extended Update Support 5.3 i386
  • Red Hat Enterprise Linux Server - Extended Update Support 4.7 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 4.7 ia64
  • Red Hat Enterprise Linux Server - Extended Update Support 4.7 i386
  • Red Hat Enterprise Linux Server - AUS 5.3 ia64
  • Red Hat Enterprise Linux Server - AUS 5.3 i386
  • Red Hat Enterprise Linux Workstation 5 x86_64
  • Red Hat Enterprise Linux Workstation 5 i386
  • Red Hat Enterprise Linux Workstation 4 x86_64
  • Red Hat Enterprise Linux Workstation 4 ia64
  • Red Hat Enterprise Linux Workstation 4 i386
  • Red Hat Enterprise Linux Desktop 5 x86_64
  • Red Hat Enterprise Linux Desktop 5 i386
  • Red Hat Enterprise Linux Desktop 4 x86_64
  • Red Hat Enterprise Linux Desktop 4 i386
  • Red Hat Enterprise Linux for IBM z Systems 5 s390x
  • Red Hat Enterprise Linux for IBM z Systems 4 s390x
  • Red Hat Enterprise Linux for IBM z Systems 4 s390
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.3 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390
  • Red Hat Enterprise Linux for Power, big endian 5 ppc
  • Red Hat Enterprise Linux for Power, big endian 4 ppc
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7 ppc
  • Red Hat Enterprise Linux Server from RHUI 5 x86_64
  • Red Hat Enterprise Linux Server from RHUI 5 i386
  • Red Hat Enterprise Linux Server - AUS 5.3 x86_64
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.3 ppc

Fixes

  • BZ - 486355 - CVE-2009-0040 libpng arbitrary free() flaw

CVEs

References