Red Hat: 2012:1461-01: libproxy: Moderate Advisory
Summary
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.
Summary
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
References
https://www.redhat.com/security/data/cve/CVE-2012-4505.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-bin-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-python-0.3.0-3.el6_3.i686.rpm
x86_64:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-0.3.0-3.el6_3.x86_64.rpm
libproxy-bin-0.3.0-3.el6_3.x86_64.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-python-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-gnome-0.3.0-3.el6_3.i686.rpm
libproxy-kde-0.3.0-3.el6_3.i686.rpm
libproxy-mozjs-0.3.0-3.el6_3.i686.rpm
libproxy-webkit-0.3.0-3.el6_3.i686.rpm
x86_64:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.x86_64.rpm
libproxy-gnome-0.3.0-3.el6_3.x86_64.rpm
libproxy-kde-0.3.0-3.el6_3.x86_64.rpm
libproxy-mozjs-0.3.0-3.el6_3.x86_64.rpm
libproxy-webkit-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-0.3.0-3.el6_3.x86_64.rpm
libproxy-bin-0.3.0-3.el6_3.x86_64.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.x86_64.rpm
libproxy-gnome-0.3.0-3.el6_3.x86_64.rpm
libproxy-kde-0.3.0-3.el6_3.x86_64.rpm
libproxy-mozjs-0.3.0-3.el6_3.x86_64.rpm
libproxy-python-0.3.0-3.el6_3.x86_64.rpm
libproxy-webkit-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-bin-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-python-0.3.0-3.el6_3.i686.rpm
ppc64:
libproxy-0.3.0-3.el6_3.ppc.rpm
libproxy-0.3.0-3.el6_3.ppc64.rpm
libproxy-bin-0.3.0-3.el6_3.ppc64.rpm
libproxy-debuginfo-0.3.0-3.el6_3.ppc.rpm
libproxy-debuginfo-0.3.0-3.el6_3.ppc64.rpm
libproxy-python-0.3.0-3.el6_3.ppc64.rpm
s390x:
libproxy-0.3.0-3.el6_3.s390.rpm
libproxy-0.3.0-3.el6_3.s390x.rpm
libproxy-bin-0.3.0-3.el6_3.s390x.rpm
libproxy-debuginfo-0.3.0-3.el6_3.s390.rpm
libproxy-debuginfo-0.3.0-3.el6_3.s390x.rpm
libproxy-python-0.3.0-3.el6_3.s390x.rpm
x86_64:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-0.3.0-3.el6_3.x86_64.rpm
libproxy-bin-0.3.0-3.el6_3.x86_64.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-python-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
i386:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-gnome-0.3.0-3.el6_3.i686.rpm
libproxy-kde-0.3.0-3.el6_3.i686.rpm
libproxy-mozjs-0.3.0-3.el6_3.i686.rpm
libproxy-webkit-0.3.0-3.el6_3.i686.rpm
ppc64:
libproxy-debuginfo-0.3.0-3.el6_3.ppc.rpm
libproxy-debuginfo-0.3.0-3.el6_3.ppc64.rpm
libproxy-devel-0.3.0-3.el6_3.ppc.rpm
libproxy-devel-0.3.0-3.el6_3.ppc64.rpm
libproxy-gnome-0.3.0-3.el6_3.ppc64.rpm
libproxy-kde-0.3.0-3.el6_3.ppc64.rpm
libproxy-mozjs-0.3.0-3.el6_3.ppc64.rpm
libproxy-webkit-0.3.0-3.el6_3.ppc64.rpm
s390x:
libproxy-debuginfo-0.3.0-3.el6_3.s390.rpm
libproxy-debuginfo-0.3.0-3.el6_3.s390x.rpm
libproxy-devel-0.3.0-3.el6_3.s390.rpm
libproxy-devel-0.3.0-3.el6_3.s390x.rpm
libproxy-gnome-0.3.0-3.el6_3.s390x.rpm
libproxy-kde-0.3.0-3.el6_3.s390x.rpm
libproxy-mozjs-0.3.0-3.el6_3.s390x.rpm
libproxy-webkit-0.3.0-3.el6_3.s390x.rpm
x86_64:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.x86_64.rpm
libproxy-gnome-0.3.0-3.el6_3.x86_64.rpm
libproxy-kde-0.3.0-3.el6_3.x86_64.rpm
libproxy-mozjs-0.3.0-3.el6_3.x86_64.rpm
libproxy-webkit-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-bin-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-python-0.3.0-3.el6_3.i686.rpm
x86_64:
libproxy-0.3.0-3.el6_3.i686.rpm
libproxy-0.3.0-3.el6_3.x86_64.rpm
libproxy-bin-0.3.0-3.el6_3.x86_64.rpm
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-python-0.3.0-3.el6_3.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
i386:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-gnome-0.3.0-3.el6_3.i686.rpm
libproxy-kde-0.3.0-3.el6_3.i686.rpm
libproxy-mozjs-0.3.0-3.el6_3.i686.rpm
libproxy-webkit-0.3.0-3.el6_3.i686.rpm
x86_64:
libproxy-debuginfo-0.3.0-3.el6_3.i686.rpm
libproxy-debuginfo-0.3.0-3.el6_3.x86_64.rpm
libproxy-devel-0.3.0-3.el6_3.i686.rpm
libproxy-devel-0.3.0-3.el6_3.x86_64.rpm
libproxy-gnome-0.3.0-3.el6_3.x86_64.rpm
libproxy-kde-0.3.0-3.el6_3.x86_64.rpm
libproxy-mozjs-0.3.0-3.el6_3.x86_64.rpm
libproxy-webkit-0.3.0-3.el6_3.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
Topic
Updated libproxy packages that fix one security issue are now available forRed Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64
Bugs Fixed
864612 - CVE-2012-4505 libproxy: PAC handling insufficient content length check leading to buffer overflow