Hi list, if you do not already monitor some security lists: You are strongly encouraged to update your qemu-kvm packages, especially on CentOS :) See below for details -------- Original-Nachricht -------- Betreff: [RHSA-2014:0421-01] Moderate: qemu-kvm-rhev security update Datum: Tue, 22 Apr 2014 17:52:38 +0000 Von: <bugzilla@redhat.com> An: <rhsa-announce@redhat.com>, <rhev-watch-list@redhat.com> ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security update Advisory ID: RHSA-2014:0421-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0421.html Issue date: 2014-04-22 CVE Names: CVE-2014-0142 CVE-2014-0143 CVE-2014-0144 CVE-2014-0145 CVE-2014-0146 CVE-2014-0147 CVE-2014-0148 CVE-2014-0150 ===================================================================== 1. Summary: Updated qemu-kvm-rhev packages that fix several security issues are now available for Red Hat Enterprise Virtualization. The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEV Agents (vdsm) - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. Multiple integer overflow, input validation, logic error, and buffer overflow flaws were discovered in various QEMU block drivers. An attacker able to modify a disk image file loaded by a guest could use these flaws to crash the guest, or corrupt QEMU process memory on the host, potentially resulting in arbitrary code execution on the host with the privileges of the QEMU process. (CVE-2014-0143, CVE-2014-0144, CVE-2014-0145, CVE-2014-0147) A buffer overflow flaw was found in the way the virtio_net_handle_mac() function of QEMU processed guest requests to update the table of MAC addresses. A privileged guest user could use this flaw to corrupt QEMU process memory on the host, potentially resulting in arbitrary code execution on the host with the privileges of the QEMU process. (CVE-2014-0150) A divide-by-zero flaw was found in the seek_to_sector() function of the parallels block driver in QEMU. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest. (CVE-2014-0142) A NULL pointer dereference flaw was found in the QCOW2 block driver in QEMU. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest. (CVE-2014-0146) It was found that the block driver for Hyper-V VHDX images did not correctly calculate BAT (Block Allocation Table) entries due to a missing bounds check. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest. (CVE-2014-0148) The CVE-2014-0143 issues were discovered by Kevin Wolf and Stefan Hajnoczi of Red Hat, the CVE-2014-0144 issues were discovered by Fam Zheng, Jeff Cody, Kevin Wolf, and Stefan Hajnoczi of Red Hat, the CVE-2014-0145 issues were discovered by Stefan Hajnoczi of Red Hat, the CVE-2014-0150 issue was discovered by Michael S. Tsirkin of Red Hat, the CVE-2014-0142, CVE-2014-0146, and CVE-2014-0147 issues were discovered by Kevin Wolf of Red Hat, and the CVE-2014-0148 issue was discovered by Jeff Cody of Red Hat. All users of qemu-kvm-rhev are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again 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/site/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1078201 - CVE-2014-0142 qemu: crash by possible division by zero 1078212 - CVE-2014-0148 Qemu: vhdx: bounds checking for block_size and logical_sector_size 1078232 - CVE-2014-0146 Qemu: qcow2: NULL dereference in qcow2_open() error path 1078846 - CVE-2014-0150 qemu: virtio-net: buffer overflow in virtio_net_handle_mac() function 1078848 - CVE-2014-0147 Qemu: block: possible crash due signed types or logic error 1078885 - CVE-2014-0145 Qemu: prevent possible buffer overflows 1079140 - CVE-2014-0143 Qemu: block: multiple integer overflow flaws 1079240 - CVE-2014-0144 Qemu: block: missing input validation 6. Package List: RHEV Agents (vdsm): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-kvm-rhev-0.12.1.2-2.415.el6_5.8.src.rpm x86_64: qemu-img-rhev-0.12.1.2-2.415.el6_5.8.x86_64.rpm qemu-kvm-rhev-0.12.1.2-2.415.el6_5.8.x86_64.rpm qemu-kvm-rhev-debuginfo-0.12.1.2-2.415.el6_5.8.x86_64.rpm qemu-kvm-rhev-tools-0.12.1.2-2.415.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-2014-0142.html https://www.redhat.com/security/data/cve/CVE-2014-0143.html https://www.redhat.com/security/data/cve/CVE-2014-0144.html https://www.redhat.com/security/data/cve/CVE-2014-0145.html https://www.redhat.com/security/data/cve/CVE-2014-0146.html https://www.redhat.com/security/data/cve/CVE-2014-0147.html https://www.redhat.com/security/data/cve/CVE-2014-0148.html https://www.redhat.com/security/data/cve/CVE-2014-0150.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. -- rhev-watch-list mailing list rhev-watch-list@redhat.com https://www.redhat.com/mailman/listinfo/rhev-watch-list