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Red Hat 6 RHSA-2013:0218-01 Moderate DoS Threat - Xorg Driver Update

red hat
Calendar Grey January 31, 2013
Dist Redhat Esm H88
A significant security patch for Red Hat's xorg-x11-drv-qxl component resolves urgent vulnerabilities. It's essential to keep your systems current.
An updated xorg-x11-drv-qxl package that fixes one security issue is now available for Red Hat Enterprise Linux 6

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

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.

Topics%20covered

Topics Covered

security advisory moderate denial of service security update Red Hat patch xorg driver

References

https://access.redhat.com/security/cve/CVE-2013-0241 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


Advisory ID: RHSA-2013:0218-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0218.html
Issue date: 2013-01-31

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.

Topics%20covered

Topics Covered

security advisory moderate denial of service security update Red Hat patch xorg driver

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

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