CentOS 5 : kvm (CESA-2014:0163)

medium Nessus Plugin ID 72490

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having Important 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel.

A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller (LAPIC) implementation. A privileged guest user could use this flaw to crash the host. (CVE-2013-6367)

A memory corruption flaw was discovered in the way KVM handled virtual APIC accesses that crossed a page boundary. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-6368)

Red Hat would like to thank Andrew Honig of Google for reporting these issues.

All kvm users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Note: the procedure in the Solution section must be performed before this update will take effect.

Solution

Update the affected kvm packages.

See Also

http://www.nessus.org/u?1f65cf42

Plugin Details

Severity: Medium

ID: 72490

File Name: centos_RHSA-2014-0163.nasl

Version: 1.8

Type: local

Agent: unix

Published: 2/14/2014

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2013-6368

Vulnerability Information

CPE: p-cpe:/a:centos:centos:kmod-kvm, p-cpe:/a:centos:centos:kmod-kvm-debug, p-cpe:/a:centos:centos:kvm, p-cpe:/a:centos:centos:kvm-qemu-img, p-cpe:/a:centos:centos:kvm-tools, cpe:/o:centos:centos:5

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2/12/2014

Vulnerability Publication Date: 12/14/2013

Reference Information

CVE: CVE-2013-6367, CVE-2013-6368

BID: 64270, 64291

RHSA: 2014:0163