Red Hat: 2013:0218-01: xorg-x11-drv-qxl: Moderate Advisory
Summary
The xorg-x11-drv-qxl package provides an X11 video driver for the QEMU QXL
video accelerator. This driver makes it possible to use Red Hat Enterprise
Linux 6 as a guest operating system under the KVM kernel module and the
QEMU multi-platform emulator, using the SPICE protocol.
A flaw was found in the way the host's qemu-kvm qxl driver and the guest's
X.Org qxl driver interacted when a SPICE connection terminated. A user able
to initiate a SPICE connection to a guest could use this flaw to make the
guest temporarily unavailable or, potentially (if the sysctl
kernel.softlockup_panic variable was set to "1" in the guest), crash the
guest. (CVE-2013-0241)
All users of xorg-x11-drv-qxl are advised to upgrade to this updated
package, which contains a backported patch to correct this issue. All
running X.Org server instances using the qxl driver 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-2013-0241.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386:
xorg-x11-drv-qxl-0.0.14-14.el6_3.i686.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.el6_3.i686.rpm
x86_64:
xorg-x11-drv-qxl-0.0.14-14.el6_3.x86_64.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.el6_3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386:
xorg-x11-drv-qxl-0.0.14-14.el6_3.i686.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.el6_3.i686.rpm
x86_64:
xorg-x11-drv-qxl-0.0.14-14.el6_3.x86_64.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.el6_3.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386:
xorg-x11-drv-qxl-0.0.14-14.el6_3.i686.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.el6_3.i686.rpm
x86_64:
xorg-x11-drv-qxl-0.0.14-14.el6_3.x86_64.rpm
xorg-x11-drv-qxl-debuginfo-0.0.14-14.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
An updated xorg-x11-drv-qxl package that fixes one security issue is nowavailable for Red 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 Server (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Bugs Fixed
906032 - CVE-2013-0241 qxl: synchronous io guest DoS