Virtuozzo 6 : qemu-guest-agent / qemu-img / qemu-kvm / etc (VZLSA-2017-0352)

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


Synopsis :

The remote Virtuozzo host is missing a security update.

Description :

An update for qemu-kvm is now available for Red Hat Enterprise Linux
6.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Kernel-based Virtual Machine (KVM) is a full virtualization solution
for Linux on a variety of architectures. The qemu-kvm packages provide
the user-space component for running virtual machines that use KVM.

Security Fix(es) :

* Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator
support is vulnerable to an out-of-bounds access issue. The issue
could occur while copying VGA data in cirrus_bitblt_cputovideo. A
privileged user inside guest could use this flaw to crash the QEMU
process OR potentially execute arbitrary code on host with privileges
of the QEMU process. (CVE-2017-2620)

Note that Tenable Network Security has attempted to extract the
preceding description block directly from the corresponding Red Hat
security advisory. Virtuozzo provides no description for VZLSA
advisories. Tenable has attempted to automatically clean and format
it as much as possible without introducing additional issues.

See also :

http://www.nessus.org/u?77a8e438
https://rhn.redhat.com/errata/RHSA-2017-0352.html

Solution :

Update the affected qemu-guest-agent / qemu-img / qemu-kvm / etc package.

Risk factor :

High / CVSS Base Score : 7.4
(CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C)
CVSS Temporal Score : 6.3
(CVSS2#E:U/RL:U/RC:C)
Public Exploit Available : false

Family: Virtuozzo Local Security Checks

Nessus Plugin ID: 101430 ()

Bugtraq ID:

CVE ID: CVE-2017-2620

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