ID de Prueba:	1.3.6.1.4.1.25623.1.0.871210
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for qemu-kvm RHSA-2014:0927-01
Resumen:	The remote host is missing an update for the 'qemu-kvm'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'qemu-kvm' package(s) announced via the referenced advisory. Vulnerability Insight: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. Two integer overflow flaws were found in the QEMU block driver for QCOW version 1 disk images. A user able to alter the QEMU disk image files loaded by a guest could use either of these flaws to corrupt QEMU process memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. (CVE-2014-0222, CVE-2014-0223) Multiple buffer overflow, input validation, and out-of-bounds write flaws were found in the way virtio, virtio-net, virtio-scsi, usb, and hpet drivers of QEMU handled state loading after migration. A user able to alter the savevm data (either on the disk or over the wire during migration) could use either of these flaws to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. (CVE-2013-4148, CVE-2013-4149, CVE-2013-4150, CVE-2013-4151, CVE-2013-4527, CVE-2013-4529, CVE-2013-4535, CVE-2013-4536, CVE-2013-4541, CVE-2013-4542, CVE-2013-6399, CVE-2014-0182, CVE-2014-3461) These issues were discovered by Michael S. Tsirkin, Anthony Liguori and Michael Roth of Red Hat: CVE-2013-4148, CVE-2013-4149, CVE-2013-4150, CVE-2013-4151, CVE-2013-4527, CVE-2013-4529, CVE-2013-4535, CVE-2013-4536, CVE-2013-4541, CVE-2013-4542, CVE-2013-6399, CVE-2014-0182, and CVE-2014-3461. This update also fixes the following bugs: * Previously, QEMU did not free pre-allocated zero clusters correctly and the clusters under some circumstances leaked. With this update, pre-allocated zero clusters are freed appropriately and the cluster leaks no longer occur. (BZ#1110188) * Prior to this update, the QEMU command interface did not properly handle resizing of cache memory during guest migration, causing QEMU to terminate unexpectedly with a segmentation fault and QEMU to fail. This update fixes the related code and QEMU no longer crashes in the described situation. (BZ#1110191) * Previously, when a guest device was hot unplugged, QEMU correctly removed the corresponding file descriptor watch but did not re-create it after the device was re-connected. As a consequence, the guest became unable to receive any data from the host over this device. With this update, the file descriptor's watch is re-created and the guest in the above scenario can communicate with the host as expected. (BZ#1110219) * Previously, the Q ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: qemu-kvm on Red Hat Enterprise Linux Server (v. 7) Solution: Please Install the Updated Packages. CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2013-4148 FEDORA-2014-6288 http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html RHSA-2014:0743 http://rhn.redhat.com/errata/RHSA-2014-0743.html RHSA-2014:0744 http://rhn.redhat.com/errata/RHSA-2014-0744.html [Qemu-stable] 20140723 [ANNOUNCE] QEMU 1.7.2 Stable released http://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=71f7fe48e10a8437c9d42d859389f37157f59980 Common Vulnerability Exposure (CVE) ID: CVE-2013-4149 RHSA-2014:0927 http://rhn.redhat.com/errata/RHSA-2014-0927.html http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=98f93ddd84800f207889491e0b5d851386b459cf Common Vulnerability Exposure (CVE) ID: CVE-2013-4150 http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=eea750a5623ddac7a61982eec8f1c93481857578 Common Vulnerability Exposure (CVE) ID: CVE-2013-4151 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=cc45995294b92d95319b4782750a3580cabdbc0c Common Vulnerability Exposure (CVE) ID: CVE-2013-4527 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=3f1c49e2136fa08ab1ef3183fd55def308829584 Common Vulnerability Exposure (CVE) ID: CVE-2013-4529 [Qemu-devel] 20131213 [PATCH 00/23] qemu state loading issues http://lists.gnu.org/archive/html/qemu-devel/2013-12/msg00394.html Common Vulnerability Exposure (CVE) ID: CVE-2013-4535 http://git.qemu.org/?p=qemu.git;a=commitdiff;h=36cf2a37132c7f01fa9adb5f95f5312b27742fd4 https://bugzilla.redhat.com/show_bug.cgi?id=1066401 Common Vulnerability Exposure (CVE) ID: CVE-2013-4536 Common Vulnerability Exposure (CVE) ID: CVE-2013-4541 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9f8e9895c504149d7048e9fc5eb5cbb34b16e49a Common Vulnerability Exposure (CVE) ID: CVE-2013-4542 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=3c3ce981423e0d6c18af82ee62f1850c2cda5976 Common Vulnerability Exposure (CVE) ID: CVE-2013-6399 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=4b53c2c72cb5541cf394033b528a6fe2a86c0ac1 Common Vulnerability Exposure (CVE) ID: CVE-2014-0182 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=a890a2f9137ac3cf5b607649e66a6f3a5512d8dc Common Vulnerability Exposure (CVE) ID: CVE-2014-0222 67357 http://www.securityfocus.com/bid/67357 DSA-3044 http://www.debian.org/security/2014/dsa-3044 FEDORA-2014-6970 http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134053.html SUSE-SU-2015:0929 http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00021.html [Qemu-devel] 20140512 [PATCH 3/5] qcow1: Validate L2 table size (CVE-2014-0222) https://lists.gnu.org/archive/html/qemu-devel/2014-05/msg02155.html openSUSE-SU-2015:1965 http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html Common Vulnerability Exposure (CVE) ID: CVE-2014-0223 67391 http://www.securityfocus.com/bid/67391 [Qemu-devel] 20140512 [PATCH 4/5] qcow1: Validate image size (CVE-2014-0223) https://lists.gnu.org/archive/html/qemu-devel/2014-05/msg02156.html Common Vulnerability Exposure (CVE) ID: CVE-2014-3461 [qemu-devel] 20140512 [PATCH] usb: fix up post load checks http://article.gmane.org/gmane.comp.emulators.qemu/272092
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