Red Hat Security Advisory: xulrunner security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1361 Final 1 1 2012-10-12T19:21:00Z Current version 2012-10-12T19:21:00Z 2012-10-12T19:21:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-10-12T20:14:09Z Updated xulrunner packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. XULRunner provides the XUL Runtime environment for applications using the Gecko layout engine. A flaw was found in the way XULRunner handled security wrappers. A web page containing malicious content could possibly cause an application linked against XULRunner (such as Mozilla Firefox) to execute arbitrary code with the privileges of the user running the application. (CVE-2012-4193) For technical details regarding this flaw, refer to the Mozilla security advisories. You can find a link to the Mozilla advisories in the References section of this erratum. Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges moz_bug_r_a4 as the original reporter. All XULRunner users should upgrade to these updated packages, which correct this issue. After installing the update, applications using XULRunner must be restarted for the changes to take effect. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Critical https://rhn.redhat.com/errata/RHSA-2012-1361.html https://rhn.redhat.com/errata/RHSA-2012-1361.html https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/updates/classification/#critical http://www.mozilla.org/security/known-vulnerabilities/firefoxESR.html http://www.mozilla.org/security/known-vulnerabilities/firefoxESR.html Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux Workstation Optional (v. 6) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 6) RHEL Desktop Workstation (v. 5 client) Red Hat Enterprise Linux Server Optional (v. 6) xulrunner-10.0.8-2.el5_8.src.rpm xulrunner-10.0.8-2.el6_3.src.rpm xulrunner-10.0.8-2.el5_8 as a component of Red Hat Enterprise Linux Desktop (v. 5 client) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Server (v. 6) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Workstation (v. 6) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner-10.0.8-2.el5_8 as a component of Red Hat Enterprise Linux (v. 5 server) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Desktop (v. 6) xulrunner-10.0.8-2.el5_8 as a component of RHEL Desktop Workstation (v. 5 client) xulrunner-10.0.8-2.el6_3 as a component of Red Hat Enterprise Linux Server Optional (v. 6) A flaw was found in the way XULRunner handled security wrappers. A web page containing malicious content could possibly cause an application linked against XULRunner (such as Mozilla Firefox) to execute arbitrary code with the privileges of the user running the application. 2012-10-11T00:00:00Z 2012-10-11T00:00:00Z CVE-2012-4193 5Client-5.8.Z:xulrunner-10.0.8-2.el5_8 5Client-Workstation-5.8.Z:xulrunner-10.0.8-2.el5_8 5Server-5.8.Z:xulrunner-10.0.8-2.el5_8 6Client-6.3.z:xulrunner-10.0.8-2.el6_3 6Client-optional-6.3.z:xulrunner-10.0.8-2.el6_3 6ComputeNode-optional-6.3.z:xulrunner-10.0.8-2.el6_3 6Server-6.3.z:xulrunner-10.0.8-2.el6_3 6Server-optional-6.3.z:xulrunner-10.0.8-2.el6_3 6Workstation-6.3.z:xulrunner-10.0.8-2.el6_3 6Workstation-optional-6.3.z:xulrunner-10.0.8-2.el6_3 Critical 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P 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/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2012-1361.html http://www.mozilla.org/security/announce/2012/mfsa2012-89.html http://www.mozilla.org/security/announce/2012/mfsa2012-89.html https://www.redhat.com/security/data/cve/CVE-2012-4193.html CVE-2012-4193 https://bugzilla.redhat.com/show_bug.cgi?id=865215 bz#865215: CVE-2012-4193 Mozilla: defaultValue security checks not applied (MFSA 2012-89) Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges moz_bug_r_a4 as the original reporter.