RHEL 6 : qemu-kvm-rhev (RHSA-2015:1088)

This script is Copyright (C) 2015-2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated qemu-kvm-rhev packages that fix one security issue are now
available for Red Hat Enterprise Virtualization 3.5.

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.

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 flaw was found in the way QEMU's AMD PCnet Ethernet emulation
handled multi-TMD packets with a length above 4096 bytes. A privileged
guest user in a guest with an AMD PCNet ethernet card enabled could
potentially use this flaw to execute arbitrary code on the host with
the privileges of the hosting QEMU process. (CVE-2015-3209)

Red Hat would like to thank Matt Tait of Google's Project Zero
security team 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.

See also :

https://www.redhat.com/security/data/cve/CVE-2015-3209.html
http://rhn.redhat.com/errata/RHSA-2015-1088.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 84188 ()

Bugtraq ID: 75123

CVE ID: CVE-2015-3209

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