Synopsis

Low: libvirt security and bug fix update

Type/Severity

Security Advisory: Low

Topic

Updated libvirt packages that fix one security issue and several bugs are
now available for Red Hat Enterprise Linux 5.

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

The libvirt library is a C API for managing and interacting with the
virtualization capabilities of Linux and other operating systems. In
addition, libvirt provides tools for remote management of virtualized
systems.

Bus and device IDs were ignored when attempting to attach multiple USB
devices with identical vendor or product IDs to a guest. This could result
in the wrong device being attached to a guest, giving that guest root
access to the device. (CVE-2012-2693)

This update also fixes the following bugs:

• Previously, the libvirtd library failed to set the autostart flags for
  already defined QEMU domains. This bug has been fixed, and the domains can
  now be successfully marked as autostarted. (BZ#675319)
  
• Prior to this update, the virFileAbsPath() function was not taking into
  account the slash ("/") directory separator when allocating memory for
  combining the cwd() function and a path. This behavior could lead to a
  memory corruption. With this update, a transformation to the virAsprintff()
  function has been introduced into virFileAbsPath(). As a result, the
  aforementioned behavior no longer occurs. (BZ#680289)
  
• With this update, a man page of the virsh user interface has been
  enhanced with information on the "domxml-from-native" and
  "domxml-to-native" commands. A correct notation of the format argument has
  been clarified. As a result, confusion is avoided when setting the format
  argument in the described commands. (BZ#783001)
  

All users of libvirt are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. After installing
the updated packages, libvirtd will be restarted automatically.

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

• 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 Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386

Fixes

• BZ - 675319 - qemu guests autostart problem
• BZ - 680289 - off-by-one in virFileAbsPath can lead to memory corruption [5.7]
• BZ - 772821 - Coverity scan revealed defects
• BZ - 772848 - Coverity scan founds some new resource leaks and NULL pointer dereference
• BZ - 783001 - Need to improve virsh domxml-*-native command docs
• BZ - 831164 - CVE-2012-2693 libvirt: address bus= device= when identicle vendor ID/product IDs usb devices attached are ignored

CVEs

• CVE-2012-2693

References

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

Red Hat Enterprise Linux Server 5

SRPM
libvirt-0.8.2-29.el5.src.rpm	SHA-256: 44cbe1608c9f333999336489593c150d6dedd81653aef799ad28c4d472576d74
x86_64
libvirt-0.8.2-29.el5.i386.rpm	SHA-256: 8b85f082a388557a87c7f0fb0f660a6a672beba44899211dc8f8d2fe4374fdc0
libvirt-0.8.2-29.el5.x86_64.rpm	SHA-256: 3ee9cd8619b3527f2241565816d5c0cc7a967b04858aa77b54381437fb625f38
libvirt-debuginfo-0.8.2-29.el5.i386.rpm	SHA-256: 714721b134efa4a340d219625b50186ecd751aa390a94c6edcca1343162e4611
libvirt-debuginfo-0.8.2-29.el5.x86_64.rpm	SHA-256: 96fe5c0b822620b592a40d8580e623dd24ca7af1b9a04625c0dca355b6b5c3ca
libvirt-devel-0.8.2-29.el5.i386.rpm	SHA-256: 3d5d45b66c20fb8b57c88a3afe46e08e9f774ad7b782f69b733b24fbc08fa6b4
libvirt-devel-0.8.2-29.el5.x86_64.rpm	SHA-256: ce6106d716a2bd53d79898ac22e0e98abe3dd01ed62c1f90ba1a0b0baadf4504
libvirt-python-0.8.2-29.el5.x86_64.rpm	SHA-256: de914bba7ae1786c4c2d23788e90278850cb13c0846fd71720fac36f0df5d91f
ia64
libvirt-0.8.2-29.el5.ia64.rpm	SHA-256: 7a064f9d09a39e4aa35002319244581e361dd9f65894f7536e3bec1c9a4da4de
libvirt-debuginfo-0.8.2-29.el5.ia64.rpm	SHA-256: a455d619808eb99adfb9347b07b9362fd8c53b8369902114fb7620a665b883f0
libvirt-devel-0.8.2-29.el5.ia64.rpm	SHA-256: 93d54bdc9953b17b56c1b39d51f3a186fcae0b11ea91f14e47e61def5061efef
libvirt-python-0.8.2-29.el5.ia64.rpm	SHA-256: b511f6e548955f5e0ca254dd985ecfd563d713a34bc8dffdbeed8438786edf38
i386
libvirt-0.8.2-29.el5.i386.rpm	SHA-256: 8b85f082a388557a87c7f0fb0f660a6a672beba44899211dc8f8d2fe4374fdc0
libvirt-debuginfo-0.8.2-29.el5.i386.rpm	SHA-256: 714721b134efa4a340d219625b50186ecd751aa390a94c6edcca1343162e4611
libvirt-devel-0.8.2-29.el5.i386.rpm	SHA-256: 3d5d45b66c20fb8b57c88a3afe46e08e9f774ad7b782f69b733b24fbc08fa6b4
libvirt-python-0.8.2-29.el5.i386.rpm	SHA-256: 36fac9ed98452226c60ac9a146ec75ecd67acec01997632f3ea3ca89f34a9a1a

Red Hat Enterprise Linux Workstation 5

SRPM
libvirt-0.8.2-29.el5.src.rpm	SHA-256: 44cbe1608c9f333999336489593c150d6dedd81653aef799ad28c4d472576d74
x86_64
libvirt-0.8.2-29.el5.i386.rpm	SHA-256: 8b85f082a388557a87c7f0fb0f660a6a672beba44899211dc8f8d2fe4374fdc0
libvirt-0.8.2-29.el5.x86_64.rpm	SHA-256: 3ee9cd8619b3527f2241565816d5c0cc7a967b04858aa77b54381437fb625f38
libvirt-debuginfo-0.8.2-29.el5.i386.rpm	SHA-256: 714721b134efa4a340d219625b50186ecd751aa390a94c6edcca1343162e4611
libvirt-debuginfo-0.8.2-29.el5.x86_64.rpm	SHA-256: 96fe5c0b822620b592a40d8580e623dd24ca7af1b9a04625c0dca355b6b5c3ca
libvirt-devel-0.8.2-29.el5.i386.rpm	SHA-256: 3d5d45b66c20fb8b57c88a3afe46e08e9f774ad7b782f69b733b24fbc08fa6b4
libvirt-devel-0.8.2-29.el5.x86_64.rpm	SHA-256: ce6106d716a2bd53d79898ac22e0e98abe3dd01ed62c1f90ba1a0b0baadf4504
libvirt-python-0.8.2-29.el5.x86_64.rpm	SHA-256: de914bba7ae1786c4c2d23788e90278850cb13c0846fd71720fac36f0df5d91f
i386
libvirt-0.8.2-29.el5.i386.rpm	SHA-256: 8b85f082a388557a87c7f0fb0f660a6a672beba44899211dc8f8d2fe4374fdc0
libvirt-debuginfo-0.8.2-29.el5.i386.rpm	SHA-256: 714721b134efa4a340d219625b50186ecd751aa390a94c6edcca1343162e4611
libvirt-devel-0.8.2-29.el5.i386.rpm	SHA-256: 3d5d45b66c20fb8b57c88a3afe46e08e9f774ad7b782f69b733b24fbc08fa6b4
libvirt-python-0.8.2-29.el5.i386.rpm	SHA-256: 36fac9ed98452226c60ac9a146ec75ecd67acec01997632f3ea3ca89f34a9a1a