RHEL 5 : kvm (RHSA-2010:0271)

High Nessus Plugin ID 63924


The remote Red Hat host is missing one or more security updates.


Updated kvm packages that fix one security issue, multiple bugs, and add enhancements are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team 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. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel.

A flaw was found in the way QEMU-KVM handled erroneous data provided by the Linux virtio-net driver, used by guest operating systems. Due to a deficiency in the TSO (TCP segment offloading) implementation, a guest's virtio-net driver would transmit improper data to a certain QEMU-KVM process on the host, causing the guest to crash. A remote attacker could use this flaw to send specially crafted data to a target guest system, causing that guest to crash. (CVE-2010-0741)

Additionally, these updated packages include numerous bug fixes and enhancements. Refer to the KVM chapter of the Red Hat Enterprise Linux 5.5 Technical Notes for details :

http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.5/html/ Technical_Notes/kvm.html

All KVM users should upgrade to these updated packages, which resolve this issue as well as fixing the bugs and adding the enhancements noted in the Technical Notes. Note: The procedure in the Solution section must be performed before this update will take effect.


Update the affected packages.

See Also




Plugin Details

Severity: High

ID: 63924

File Name: redhat-RHSA-2010-0271.nasl

Version: $Revision: 1.11 $

Type: local

Agent: unix

Published: 2013/01/24

Modified: 2017/01/04

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kmod-kvm, p-cpe:/a:redhat:enterprise_linux:kvm, 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 Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2010/03/30

Reference Information

CVE: CVE-2010-0430, CVE-2010-0741

BID: 64576

OSVDB: 60894, 104885

RHSA: 2010:0271