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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0834 Moderate: libvirt security and bug fix update 28 May 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libvirt Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-0179 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2014-0560.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running libvirt 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: libvirt security and bug fix update Advisory ID: RHSA-2014:0560-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0560.html Issue date: 2014-05-27 CVE Names: CVE-2014-0179 ===================================================================== 1. Summary: Updated libvirt packages that fix one security issue and three bugs are 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 Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64 3. 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. It was found that libvirt passes the XML_PARSE_NOENT flag when parsing XML documents using the libxml2 library, in which case all XML entities in the parsed documents are expanded. A user able to force libvirtd to parse an XML document with an entity pointing to a special file that blocks on read access could use this flaw to cause libvirtd to hang indefinitely, resulting in a denial of service on the system. (CVE-2014-0179) Red Hat would like to thank the upstream Libvirt project for reporting this issue. Upstream acknowledges Daniel P. Berrange and Richard Jones as the original reporters. This update also fixes the following bugs: * When hot unplugging a virtual CPU (vCPU), libvirt kept a pointer to already freed memory if the vCPU was pinned to a host CPU. Consequently, when reading the CPU pinning information, libvirt terminated unexpectedly due to an attempt to access this memory. This update ensures that libvirt releases the pointer to the previously allocated memory when a vCPU is being hot unplugged, and it no longer crashes in this situation. (BZ#1091206) * Previously, libvirt passed an incorrect argument to the "tc" command when setting quality of service (QoS) on a network interface controller (NIC). As a consequence, QoS was applied only to IP traffic. With this update, libvirt constructs the "tc" command correctly so that QoS is applied to all traffic as expected. (BZ#1096806) * When using the sanlock daemon for managing access to shared storage, libvirt expected all QEMU domains to be registered with sanlock. However, if a QEMU domain was started prior to enabling sanlock, the domain was not registered with sanlock. Consequently, migration of a virtual machine (VM) from such a QEMU domain failed with a libvirt error. With this update, libvirt verifies whether a QEMU domain process is registered with sanlock before it starts working with the domain, ensuring that migration of virtual machines works as expected. (BZ#1097227) All libvirt users 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. 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/site/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1088290 - CVE-2014-0179 libvirt: unsafe parsing of XML documents allows libvirt DoS and/or arbitrary file read 1091206 - libvirtd crashed after hot-unplug the vcpus which is pinned to host cpus 1096806 - [BUG] Quality of service does just apply to protocol "ip" instead of the device 1097227 - VM migration in RHEV environment failed due to libvirt error "Failed to inquire lock: No such process" 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm i386: libvirt-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-python-0.10.2-29.el6_5.8.i686.rpm x86_64: libvirt-0.10.2-29.el6_5.8.x86_64.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.x86_64.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-python-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm i386: libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm x86_64: libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.x86_64.rpm libvirt-lock-sanlock-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm x86_64: libvirt-0.10.2-29.el6_5.8.x86_64.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.x86_64.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-python-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm x86_64: libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.x86_64.rpm libvirt-lock-sanlock-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm i386: libvirt-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-python-0.10.2-29.el6_5.8.i686.rpm ppc64: libvirt-0.10.2-29.el6_5.8.ppc64.rpm libvirt-client-0.10.2-29.el6_5.8.ppc.rpm libvirt-client-0.10.2-29.el6_5.8.ppc64.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.ppc.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.ppc64.rpm libvirt-devel-0.10.2-29.el6_5.8.ppc.rpm libvirt-devel-0.10.2-29.el6_5.8.ppc64.rpm libvirt-python-0.10.2-29.el6_5.8.ppc64.rpm s390x: libvirt-0.10.2-29.el6_5.8.s390x.rpm libvirt-client-0.10.2-29.el6_5.8.s390.rpm libvirt-client-0.10.2-29.el6_5.8.s390x.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.s390.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.s390x.rpm libvirt-devel-0.10.2-29.el6_5.8.s390.rpm libvirt-devel-0.10.2-29.el6_5.8.s390x.rpm libvirt-python-0.10.2-29.el6_5.8.s390x.rpm x86_64: libvirt-0.10.2-29.el6_5.8.x86_64.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.x86_64.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.x86_64.rpm libvirt-python-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm x86_64: libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-lock-sanlock-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm i386: libvirt-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-python-0.10.2-29.el6_5.8.i686.rpm x86_64: libvirt-0.10.2-29.el6_5.8.x86_64.rpm libvirt-client-0.10.2-29.el6_5.8.i686.rpm libvirt-client-0.10.2-29.el6_5.8.x86_64.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.i686.rpm libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-devel-0.10.2-29.el6_5.8.i686.rpm libvirt-devel-0.10.2-29.el6_5.8.x86_64.rpm libvirt-python-0.10.2-29.el6_5.8.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libvirt-0.10.2-29.el6_5.8.src.rpm x86_64: libvirt-debuginfo-0.10.2-29.el6_5.8.x86_64.rpm libvirt-lock-sanlock-0.10.2-29.el6_5.8.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-2014-0179.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 2014 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFThL9VXlSAg2UNWIIRAhMDAKCJzAmos8PKFZCoT8oEXQqqFtMlVgCeMI7u McdhSsbPVddS/kc/Gcg3f2E= =q8wr - -----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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