Issued:

2007-05-30

Updated:

2007-05-30

RHSA-2007:0400 - Critical: firefox security update

Synopsis

Critical: firefox security update

Type/Severity

Security Advisory Critical

Topic

Updated firefox packages that fix several security bugs 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.

Several flaws were found in the way Firefox processed certain malformed JavaScript code. A web page containing malicious JavaScript code could cause Firefox to crash or potentially execute arbitrary code as the user running Firefox. (CVE-2007-2867, CVE-2007-2868)

A flaw was found in the way Firefox handled certain FTP PASV commands. A malicious FTP server could use this flaw to perform a rudimentary port-scan of machines behind a user's firewall. (CVE-2007-1562)

Several denial of service flaws were found in the way Firefox handled certain form and cookie data. A malicious web site that is able to set arbitrary form and cookie data could prevent Firefox from functioning properly. (CVE-2007-1362, CVE-2007-2869)

A flaw was found in the way Firefox handled the addEventListener JavaScript method. A malicious web site could use this method to access or modify sensitive data from another web site. (CVE-2007-2870)

A flaw was found in the way Firefox displayed certain web content. A malicious web page could generate content that would overlay user interface elements such as the hostname and security indicators, tricking users into thinking they are visiting a different site. (CVE-2007-2871)

Users of Firefox are advised to upgrade to these erratum packages, which contain Firefox version 1.5.0.12 that corrects these issues.

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 This content is not included.http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

Updated Packages

• devhelp-0.12-11.el5.i386.rpm
• devhelp-devel-0.12-11.el5.ia64.rpm
• firefox-1.5.0.12-0.1.el4.src.rpm
• firefox-1.5.0.12-0.1.el4.x86_64.rpm
• firefox-devel-1.5.0.12-1.el5.ia64.rpm
• firefox-1.5.0.12-0.1.el4.s390.rpm
• firefox-1.5.0.12-0.1.el4.ppc.rpm
• yelp-2.16.0-15.el5.ia64.rpm
• yelp-2.16.0-15.el5.ppc.rpm
• firefox-devel-1.5.0.12-1.el5.x86_64.rpm
• devhelp-devel-0.12-11.el5.ppc.rpm
• devhelp-0.12-11.el5.src.rpm
• devhelp-devel-0.12-11.el5.i386.rpm
• firefox-1.5.0.12-1.el5.x86_64.rpm
• firefox-devel-1.5.0.12-1.el5.i386.rpm
• firefox-1.5.0.12-1.el5.ia64.rpm
• firefox-devel-1.5.0.12-1.el5.s390x.rpm
• devhelp-0.12-11.el5.s390x.rpm
• devhelp-0.12-11.el5.ppc.rpm
• firefox-1.5.0.12-0.1.el4.ia64.rpm
• firefox-devel-1.5.0.12-1.el5.ppc.rpm
• firefox-1.5.0.12-1.el5.s390x.rpm
• firefox-1.5.0.12-0.1.el4.s390x.rpm
• devhelp-devel-0.12-11.el5.x86_64.rpm
• firefox-1.5.0.12-1.el5.ppc.rpm
• devhelp-devel-0.12-11.el5.s390.rpm
• firefox-1.5.0.12-0.1.el4.i386.rpm
• devhelp-0.12-11.el5.x86_64.rpm
• firefox-1.5.0.12-1.el5.src.rpm
• yelp-2.16.0-15.el5.src.rpm
• yelp-2.16.0-15.el5.x86_64.rpm
• firefox-1.5.0.12-1.el5.s390.rpm
• yelp-2.16.0-15.el5.i386.rpm
• devhelp-0.12-11.el5.ia64.rpm
• firefox-1.5.0.12-1.el5.i386.rpm
• devhelp-devel-0.12-11.el5.s390x.rpm
• firefox-devel-1.5.0.12-1.el5.s390.rpm
• devhelp-0.12-11.el5.s390.rpm
• yelp-2.16.0-15.el5.s390x.rpm

Fixes

• This content is not included.BZ - 241670

CVEs

• CVE-2007-2868
• CVE-2007-2869
• CVE-2007-2867
• CVE-2007-1562
• CVE-2007-2871
• CVE-2007-2870
• CVE-2007-1362

References

• http://www.redhat.com/security/updates/classification/#critical

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.