Issued:

2012-11-14

Updated:

2012-11-14

RHSA-2012:1461 - Moderate: libproxy security update

Synopsis

Moderate: libproxy security update

Type/Severity

Security Advisory Moderate

Topic

Updated libproxy packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate 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.

Description

libproxy is a library that handles all the details of proxy configuration.

A buffer overflow flaw was found in the way libproxy handled the downloading of proxy auto-configuration (PAC) files. A malicious server hosting a PAC file or a man-in-the-middle attacker could use this flaw to cause an application using libproxy to crash or, possibly, execute arbitrary code, if the proxy settings obtained by libproxy (from the environment or the desktop environment settings) instructed the use of a PAC proxy configuration. (CVE-2012-4505)

This issue was discovered by the Red Hat Security Response Team.

Users of libproxy should upgrade to these updated packages, which contain a backported patch to correct this issue. All applications using libproxy must be restarted for this update to take effect.

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 https://access.redhat.com/knowledge/articles/11258

Affected Products

Updated Packages

• libproxy-kde-0.3.0-3.el6_3.x86_64.rpm
• libproxy-webkit-0.3.0-3.el6_3.ppc64.rpm
• libproxy-0.3.0-3.el6_3.s390x.rpm
• libproxy-bin-0.3.0-3.el6_3.x86_64.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.ppc64.rpm
• libproxy-bin-0.3.0-3.el6_3.i686.rpm
• libproxy-gnome-0.3.0-3.el6_3.ppc64.rpm
• libproxy-devel-0.3.0-3.el6_3.ppc64.rpm
• libproxy-python-0.3.0-3.el6_3.i686.rpm
• libproxy-mozjs-0.3.0-3.el6_3.s390x.rpm
• libproxy-python-0.3.0-3.el6_3.ppc64.rpm
• libproxy-bin-0.3.0-3.el6_3.ppc64.rpm
• libproxy-gnome-0.3.0-3.el6_3.x86_64.rpm
• libproxy-0.3.0-3.el6_3.x86_64.rpm
• libproxy-webkit-0.3.0-3.el6_3.x86_64.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
• libproxy-kde-0.3.0-3.el6_3.i686.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
• libproxy-devel-0.3.0-3.el6_3.i686.rpm
• libproxy-0.3.0-3.el6_3.ppc.rpm
• libproxy-mozjs-0.3.0-3.el6_3.i686.rpm
• libproxy-kde-0.3.0-3.el6_3.s390x.rpm
• libproxy-0.3.0-3.el6_3.ppc64.rpm
• libproxy-mozjs-0.3.0-3.el6_3.ppc64.rpm
• libproxy-devel-0.3.0-3.el6_3.s390.rpm
• libproxy-0.3.0-3.el6_3.s390.rpm
• libproxy-0.3.0-3.el6_3.i686.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.ppc.rpm
• libproxy-devel-0.3.0-3.el6_3.x86_64.rpm
• libproxy-python-0.3.0-3.el6_3.s390x.rpm
• libproxy-devel-0.3.0-3.el6_3.s390x.rpm
• libproxy-0.3.0-3.el6_3.src.rpm
• libproxy-kde-0.3.0-3.el6_3.ppc64.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.s390.rpm
• libproxy-webkit-0.3.0-3.el6_3.s390x.rpm
• libproxy-gnome-0.3.0-3.el6_3.s390x.rpm
• libproxy-bin-0.3.0-3.el6_3.s390x.rpm
• libproxy-python-0.3.0-3.el6_3.x86_64.rpm
• libproxy-gnome-0.3.0-3.el6_3.i686.rpm
• libproxy-devel-0.3.0-3.el6_3.ppc.rpm
• libproxy-debuginfo-0.3.0-3.el6_3.s390x.rpm
• libproxy-webkit-0.3.0-3.el6_3.i686.rpm
• libproxy-mozjs-0.3.0-3.el6_3.x86_64.rpm

Fixes

• This content is not included.BZ - 864612

CVEs

• CVE-2012-4505

References

• https://access.redhat.com/security/updates/classification/#moderate

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.