-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libvirt security and bug fix update Advisory ID: RHSA-2013:0831-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0831.html Issue date: 2013-05-16 CVE Names: CVE-2013-1962 ===================================================================== 1. Summary: Updated libvirt packages that fix one security issue and two 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 libvirtd leaked file descriptors when listing all volumes for a particular pool. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to cause libvirtd to consume all available file descriptors, preventing other users from using libvirtd services (such as starting a new guest) until libvirtd is restarted. (CVE-2013-1962) Red Hat would like to thank Edoardo Comar of IBM for reporting this issue. This update also fixes the following bugs: * Previously, libvirt made control group (cgroup) requests on files that it should not have. With older kernels, such nonsensical cgroup requests were ignored; however, newer kernels are stricter, resulting in libvirt logging spurious warnings and failures to the libvirtd and audit logs. The audit log failures displayed by the ausearch tool were similar to the following: root [date] - failed cgroup allow path rw /dev/kqemu With this update, libvirt no longer attempts the nonsensical cgroup actions, leaving only valid attempts in the libvirtd and audit logs (making it easier to search for real cases of failure). (BZ#958837) * Previously, libvirt used the wrong variable when constructing audit messages. This led to invalid audit messages, causing ausearch to format certain entries as having "path=(null)" instead of the correct path. This could prevent ausearch from locating events related to cgroup device ACL modifications for guests managed by libvirt. With this update, the audit messages are generated correctly, preventing loss of audit coverage. (BZ#958839) All users of libvirt 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/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 953107 - CVE-2013-1962 libvirt: DoS (max count of open files exhaustion) due sockets leak in the storage pool 958837 - libvirt spams audit log with unneeded failures 958839 - Cgroup audit events with path are not escaped 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libvirt-0.10.2-18.el6_4.5.src.rpm i386: libvirt-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-python-0.10.2-18.el6_4.5.i686.rpm x86_64: libvirt-0.10.2-18.el6_4.5.x86_64.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.x86_64.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-python-0.10.2-18.el6_4.5.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-0.10.2-18.el6_4.5.src.rpm i386: libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm x86_64: libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.x86_64.rpm libvirt-lock-sanlock-0.10.2-18.el6_4.5.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-0.10.2-18.el6_4.5.src.rpm x86_64: libvirt-0.10.2-18.el6_4.5.x86_64.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.x86_64.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-python-0.10.2-18.el6_4.5.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-0.10.2-18.el6_4.5.src.rpm x86_64: libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.x86_64.rpm libvirt-lock-sanlock-0.10.2-18.el6_4.5.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libvirt-0.10.2-18.el6_4.5.src.rpm i386: libvirt-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-python-0.10.2-18.el6_4.5.i686.rpm ppc64: libvirt-0.10.2-18.el6_4.5.ppc64.rpm libvirt-client-0.10.2-18.el6_4.5.ppc.rpm libvirt-client-0.10.2-18.el6_4.5.ppc64.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.ppc.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.ppc64.rpm libvirt-devel-0.10.2-18.el6_4.5.ppc.rpm libvirt-devel-0.10.2-18.el6_4.5.ppc64.rpm libvirt-python-0.10.2-18.el6_4.5.ppc64.rpm s390x: libvirt-0.10.2-18.el6_4.5.s390x.rpm libvirt-client-0.10.2-18.el6_4.5.s390.rpm libvirt-client-0.10.2-18.el6_4.5.s390x.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.s390.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.s390x.rpm libvirt-devel-0.10.2-18.el6_4.5.s390.rpm libvirt-devel-0.10.2-18.el6_4.5.s390x.rpm libvirt-python-0.10.2-18.el6_4.5.s390x.rpm x86_64: libvirt-0.10.2-18.el6_4.5.x86_64.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.x86_64.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.x86_64.rpm libvirt-python-0.10.2-18.el6_4.5.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-0.10.2-18.el6_4.5.src.rpm x86_64: libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-lock-sanlock-0.10.2-18.el6_4.5.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libvirt-0.10.2-18.el6_4.5.src.rpm i386: libvirt-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-python-0.10.2-18.el6_4.5.i686.rpm x86_64: libvirt-0.10.2-18.el6_4.5.x86_64.rpm libvirt-client-0.10.2-18.el6_4.5.i686.rpm libvirt-client-0.10.2-18.el6_4.5.x86_64.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.i686.rpm libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-devel-0.10.2-18.el6_4.5.i686.rpm libvirt-devel-0.10.2-18.el6_4.5.x86_64.rpm libvirt-python-0.10.2-18.el6_4.5.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-0.10.2-18.el6_4.5.src.rpm x86_64: libvirt-debuginfo-0.10.2-18.el6_4.5.x86_64.rpm libvirt-lock-sanlock-0.10.2-18.el6_4.5.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-2013-1962.html https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . 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) iD8DBQFRlPsqXlSAg2UNWIIRAsvPAKC5kJLtRjDgo3pLldnkLUGDMoULbgCfRRMV 1ddcytVM9R7IfyXz9ek9AkY= =1gJK -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce