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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0137 Moderate: xorg-x11-drv-qxl security update 1 February 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xorg-x11-drv-qxl Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-0241 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2013-0218.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running xorg-x11-drv-qxl check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: xorg-x11-drv-qxl security update Advisory ID: RHSA-2013:0218-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0218.html Issue date: 2013-01-31 CVE Names: CVE-2013-0241 ===================================================================== 1. Summary: An updated xorg-x11-drv-qxl package that fixes one security issue is 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. 2. 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 3. Description: 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. 4. 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 5. Bugs fixed (http://bugzilla.redhat.com/): 906032 - CVE-2013-0241 qxl: synchronous io guest DoS 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xorg-x11-drv-qxl-0.0.14-14.el6_3.src.rpm 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: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xorg-x11-drv-qxl-0.0.14-14.el6_3.src.rpm 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: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xorg-x11-drv-qxl-0.0.14-14.el6_3.src.rpm 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 7. References: https://www.redhat.com/security/data/cve/CVE-2013-0241.html https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRCukIXlSAg2UNWIIRAjRwAKCxXl/mUqFo5NnrZfIVbvy7AtcCbgCfZ+79 43PvIABd3aP3eKRuSahL2A8= =U0Db - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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