CentOS 5 : kvm (CESA-2015:1003) (Venom)

high Nessus Plugin ID 83421

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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.

An out-of-bounds memory access flaw was found in the way QEMU's virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. (CVE-2015-3456)

Red Hat would like to thank Jason Geffner of CrowdStrike 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.

Plugin Details

Severity: High

ID: 83421

File Name: centos_RHSA-2015-1003.nasl

Version: 2.16

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 5/13/2015

Updated: 9/28/2023

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

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.4

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

CVSS Score Source: CVE-2015-3456

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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/13/2015

Vulnerability Publication Date: 5/13/2015

Exploitable With

Core Impact

Reference Information

CVE: CVE-2015-3456

IAVA: 2015-A-0115-S

RHSA: 2015:1003

Detections

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