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Red Hat Security Advisory 2015-1923-01

Posted on 23 October 2015
Source : packetstormsecurity.org Link

 

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Red Hat Security Advisory

Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2015:1923-01
Product: Red Hat Enterprise Virtualization
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1923.html
Issue date: 2015-10-22
CVE Names: CVE-2015-5279
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1. Summary:

Updated qemu-kvm-rhev packages that fix one security issue are now
available for Red Hat Enterprise Virtualization.

Red Hat Product Security has rated this update as having Important 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:

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.

A heap buffer overflow flaw was found in the way QEMU's NE2000 NIC
emulation implementation handled certain packets received over the network.
A privileged user inside a guest could use this flaw to crash the QEMU
instance (denial of service) or potentially execute arbitrary code on the
host. (CVE-2015-5279)

Red Hat would like to thank Qinghao Tang of QIHU 360 Inc. for reporting
this issue.

All qemu-kvm-rhev users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. 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.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1256672 - CVE-2015-5279 qemu: Heap overflow vulnerability in ne2000_receive() function

6. Package List:

RHEV Agents (vdsm):

Source:
qemu-kvm-rhev-0.12.1.2-2.479.el6_7.2.src.rpm

x86_64:
qemu-img-rhev-0.12.1.2-2.479.el6_7.2.x86_64.rpm
qemu-kvm-rhev-0.12.1.2-2.479.el6_7.2.x86_64.rpm
qemu-kvm-rhev-debuginfo-0.12.1.2-2.479.el6_7.2.x86_64.rpm
qemu-kvm-rhev-tools-0.12.1.2-2.479.el6_7.2.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/

7. References:

https://access.redhat.com/security/cve/CVE-2015-5279
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
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