RHSA-2009:1430 - Security Advisory

Topic

Updated firefox packages that fix several security issues are 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. XULRunner provides the XUL
Runtime environment for Mozilla Firefox. nspr provides the Netscape
Portable Runtime (NSPR).

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 with the privileges of the user running
Firefox. (CVE-2009-3070, CVE-2009-3071, CVE-2009-3072, CVE-2009-3074,
CVE-2009-3075)

A use-after-free flaw was found in Firefox. An attacker could use this flaw
to crash Firefox or, potentially, execute arbitrary code with the
privileges of the user running Firefox. (CVE-2009-3077)

A flaw was found in the way Firefox handles malformed JavaScript. A website
with an object containing malicious JavaScript could execute that
JavaScript with the privileges of the user running Firefox. (CVE-2009-3079)

Descriptions in the dialogs when adding and removing PKCS #11 modules were
not informative. An attacker able to trick a user into installing a
malicious PKCS #11 module could use this flaw to install their own
Certificate Authority certificates on a user's machine, making it possible
to trick the user into believing they are viewing a trusted site or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2009-3076)

A flaw was found in the way Firefox displays the address bar when
window.open() is called in a certain way. An attacker could use this flaw
to conceal a malicious URL, possibly tricking a user into believing they
are viewing a trusted site. (CVE-2009-2654)

A flaw was found in the way Firefox displays certain Unicode characters. An
attacker could use this flaw to conceal a malicious URL, possibly tricking
a user into believing they are viewing a trusted site. (CVE-2009-3078)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.0.14. 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 3.0.14, which corrects 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 for x86_64 - Extended Update Support 5.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 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 5.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 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 5.4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 521311 - CVE-2009-2654 firefox: URL bar spoofing vulnerability
• BZ - 521686 - CVE-2009-3070 Firefox 3.5 3.0.14 browser engine crashes
• BZ - 521687 - CVE-2009-3071 Firefox 3.5.2 3.0.14 browser engine crashes
• BZ - 521688 - CVE-2009-3072 Firefox 3.5.3 3.0.14 browser engine crashes
• BZ - 521690 - CVE-2009-3074 Firefox 3.5 3.0.14 JavaScript engine crashes
• BZ - 521691 - CVE-2009-3075 Firefox 3.5.2 3.0.14 JavaScript engine crashes
• BZ - 521692 - CVE-2009-3076 Firefox 3.0.14 Insufficient warning for PKCS11 module installation and removal
• BZ - 521693 - CVE-2009-3077 Firefox 3.5.3 3.0.14 TreeColumns dangling pointer vulnerability
• BZ - 521694 - CVE-2009-3078 Firefox 3.5.3 3.0.14 Location bar spoofing via tall line-height Unicode characters
• BZ - 521695 - CVE-2009-3079 Firefox 3.5.3 3.0.14 Chrome privilege escalation with FeedWriter

CVEs

• CVE-2009-3076
• CVE-2009-3077
• CVE-2009-3074
• CVE-2009-3075
• CVE-2009-3072
• CVE-2009-2654
• CVE-2009-3070
• CVE-2009-3071
• CVE-2009-3078
• CVE-2009-3079

References

• http://www.redhat.com/security/updates/classification/#critical
• http://www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.14