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CentOS 5 : kvm (CESA-2015:1189)

high Nessus Plugin ID 84406

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Synopsis

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

Description

Updated kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 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.

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 kvm users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 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?c65dd49d

Plugin Details

Severity: High

ID: 84406

File Name: centos_RHSA-2015-1189.nasl

Version: 2.9

Type: local

Agent: unix

Published: 6/26/2015

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2015-3209

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2015

Vulnerability Publication Date: 6/15/2015

Reference Information

CVE: CVE-2015-3209

BID: 75123

RHSA: 2015:1189