08 March 2012
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0254 Important: xen security and bug fix update 8 March 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xen Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-0029 Reference: ESB-2012.0202 ESB-2012.0174 ESB-2012.0091 ESB-2012.0078 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0370.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: xen security and bug fix update Advisory ID: RHSA-2012:0370-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0370.html Issue date: 2012-03-07 CVE Names: CVE-2012-0029 ===================================================================== 1. Summary: Updated xen packages that fix one security issue and two bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important 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: RHEL Desktop Multi OS (v. 5 client) - i386, x86_64 RHEL Virtualization (v. 5 server) - i386, ia64, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: The xen packages contain administration tools and the xend service for managing the kernel-xen kernel for virtualization on Red Hat Enterprise Linux. A heap overflow flaw was found in the way QEMU emulated the e1000 network interface card. A privileged guest user in a virtual machine whose network interface is configured to use the e1000 emulated driver could use this flaw to crash QEMU or, possibly, escalate their privileges on the host. (CVE-2012-0029) Red Hat would like to thank Nicolae Mogoreanu for reporting this issue. This update also fixes the following bugs: * Adding support for jumbo frames introduced incorrect network device expansion when a bridge is created. The expansion worked correctly with the default configuration, but could have caused network setup failures when a user-defined network script was used. This update changes the expansion so network setup will not fail, even when a user-defined network script is used. (BZ#797191) * A bug was found in xenconsoled, the Xen hypervisor console daemon. If timestamp logging for this daemon was enabled (using both the XENCONSOLED_TIMESTAMP_HYPERVISOR_LOG and XENCONSOLED_TIMESTAMP_GUEST_LOG options in "/etc/sysconfig/xend"), xenconsoled could crash if the guest emitted a lot of information to its serial console in a short period of time. Eventually, the guest would freeze after the console buffer was filled due to the crashed xenconsoled. Timestamp logging is disabled by default. (BZ#797836) All xen users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted 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/): 772075 - CVE-2012-0029 qemu: e1000: process_tx_desc legacy mode packets heap overflow 797191 - xen-network-common.sh scripting typo 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xen-3.0.3-135.el5_8.2.src.rpm i386: xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-libs-3.0.3-135.el5_8.2.i386.rpm x86_64: xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.x86_64.rpm xen-libs-3.0.3-135.el5_8.2.i386.rpm xen-libs-3.0.3-135.el5_8.2.x86_64.rpm RHEL Desktop Multi OS (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xen-3.0.3-135.el5_8.2.src.rpm i386: xen-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-devel-3.0.3-135.el5_8.2.i386.rpm x86_64: xen-3.0.3-135.el5_8.2.x86_64.rpm xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.x86_64.rpm xen-devel-3.0.3-135.el5_8.2.i386.rpm xen-devel-3.0.3-135.el5_8.2.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-135.el5_8.2.src.rpm i386: xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-libs-3.0.3-135.el5_8.2.i386.rpm ia64: xen-debuginfo-3.0.3-135.el5_8.2.ia64.rpm xen-libs-3.0.3-135.el5_8.2.ia64.rpm x86_64: xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.x86_64.rpm xen-libs-3.0.3-135.el5_8.2.i386.rpm xen-libs-3.0.3-135.el5_8.2.x86_64.rpm RHEL Virtualization (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-135.el5_8.2.src.rpm i386: xen-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-devel-3.0.3-135.el5_8.2.i386.rpm ia64: xen-3.0.3-135.el5_8.2.ia64.rpm xen-debuginfo-3.0.3-135.el5_8.2.ia64.rpm xen-devel-3.0.3-135.el5_8.2.ia64.rpm x86_64: xen-3.0.3-135.el5_8.2.x86_64.rpm xen-debuginfo-3.0.3-135.el5_8.2.i386.rpm xen-debuginfo-3.0.3-135.el5_8.2.x86_64.rpm xen-devel-3.0.3-135.el5_8.2.i386.rpm xen-devel-3.0.3-135.el5_8.2.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-2012-0029.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <email@example.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPV3OJXlSAg2UNWIIRAmW9AJ9fJNBoRl53OF0j7rYcIObn33DHJgCgsUJ8 5lwaUxxjnVeHwQo3Xj78Yjg= =Qq2v - -----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. 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