Scientific Linux Security Update : kvm on SL5.x x86_64

low Nessus Plugin ID 60934
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

A data structure field in kvm_vcpu_ioctl_x86_get_vcpu_events() in QEMU-KVM was not initialized properly before being copied to user-space. A privileged host user with access to '/dev/kvm' could use this flaw to leak kernel stack memory to user-space. (CVE-2010-4525)

These updated packages also fix several bugs.

The following procedure must be performed before this update will take effect :

1) Stop all KVM guest virtual machines.

2) Either reboot the hypervisor machine or, as the root user, remove (using 'modprobe -r [module]') and reload (using 'modprobe [module]') all of the following modules which are currently running (determined using 'lsmod'): kvm, ksm, kvm-intel or kvm-amd.

3) Restart the KVM guest virtual machines.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?744702d6

Plugin Details

Severity: Low

ID: 60934

File Name: sl_20110113_kvm_on_SL5_x.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/1/2012

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 1/13/2011

Reference Information

CVE: CVE-2010-4525