Test ID:	1.3.6.1.4.1.25623.1.0.880996
Category:	CentOS Local Security Checks
Title:	CentOS Update for libvirt CESA-2011:1019 centos5 i386
Summary:	The remote host is missing an update for the 'libvirt'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the 'libvirt' package(s) announced via the referenced advisory. Vulnerability Insight: The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. An integer overflow flaw was found in libvirtd's RPC call handling. An attacker able to establish read-only connections to libvirtd could trigger this flaw by calling virDomainGetVcpus() with specially-crafted parameters, causing libvirtd to crash. (CVE-2011-2511) This update fixes the following bugs: * libvirt was rebased from version 0.6.3 to version 0.8.2 in Red Hat Enterprise Linux 5.6. A code audit found a minor API change that effected error messages seen by libvirt 0.8.2 clients talking to libvirt 0.7.1 0.7.7 (0.7.x) servers. A libvirt 0.7.x server could send VIR_ERR_BUILD_FIREWALL errors where a libvirt 0.8.2 client expected VIR_ERR_CONFIG_UNSUPPORTED errors. In other circumstances, a libvirt 0.8.2 client saw a 'Timed out during operation' message where it should see an 'Invalid network filter' error. This update adds a backported patch that allows libvirt 0.8.2 clients to interoperate with the API as used by libvirt 0.7.x servers, ensuring correct error messages are sent. (BZ#665075) * libvirt could crash if the maximum number of open file descriptors (_SC_OPEN_MAX) grew larger than the FD_SETSIZE value because it accessed file descriptors outside the bounds of the set. With this update the maximum number of open file descriptors can no longer grow larger than the FD_SETSIZE value. (BZ#665549) * A libvirt race condition was found. An array in the libvirt event handlers was accessed with a lock temporarily released. In rare cases, if one thread attempted to access this array but a second thread reallocated the array before the first thread reacquired a lock, it could lead to the first thread attempting to access freed memory, potentially causing libvirt to crash. With this update libvirt no longer refers to the old array and, consequently, behaves as expected. (BZ#671569) * Guests connected to a passthrough NIC would kernel panic if a system_reset signal was sent through the QEMU monitor. With this update you can reset such guests as expected. (BZ#689880) * When using the Xen kernel, the rpmbuild command failed on the xencapstest test. With this update you can run rpmbuild successfully when using the Xen kernel. (BZ#690459) * When a disk was hot unplugged, 'ret >= 0' was passed to the qemuAuditDisk calls in disk hotunplug operations before ret was, in fact, set to 0. As well, the error path jumped to the 'cleanup&q ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: libvirt on CentOS 5 Solution: Please install the updated packages. CVSS Score: 4.0 CVSS Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-2511 1025822 http://www.securitytracker.com/id?1025822 45375 http://secunia.com/advisories/45375 45441 http://secunia.com/advisories/45441 45446 http://secunia.com/advisories/45446 DSA-2280 http://www.debian.org/security/2011/dsa-2280 FEDORA-2011-9062 http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062855.html FEDORA-2011-9091 http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062515.html RHSA-2011:1019 http://www.redhat.com/support/errata/RHSA-2011-1019.html RHSA-2011:1197 http://www.redhat.com/support/errata/RHSA-2011-1197.html SUSE-SU-2011:0837 https://hermes.opensuse.org/messages/10027908 USN-1180-1 http://www.ubuntu.com/usn/USN-1180-1 [libvirt] 20110624 [PATCH 2/2] remote: protect against integer overflow https://www.redhat.com/archives/libvir-list/2011-June/msg01278.html [oss-security] 20110628 CVE request: libvirt: integer overflow in VirDomainGetVcpus http://www.openwall.com/lists/oss-security/2011/06/28/9 http://libvirt.org/news.html libvirt-virdomaingetvcpus-bo(68271) https://exchange.xforce.ibmcloud.com/vulnerabilities/68271
Copyright	Copyright (C) 2011 Greenbone AG

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