RHEL 5 : kvm (RHSA-2014:0163)

medium Nessus Plugin ID 72473

Synopsis

The remote Red Hat 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 packages.

See Also

https://access.redhat.com/errata/RHSA-2014:0163

https://access.redhat.com/security/cve/cve-2013-6367

https://access.redhat.com/security/cve/cve-2013-6368

Plugin Details

Severity: Medium

ID: 72473

File Name: redhat-RHSA-2014-0163.nasl

Version: 1.13

Type: local

Agent: unix

Published: 2/13/2014

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/12/2014

Reference Information

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

BID: 64270, 64291

RHSA: 2014:0163