Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20150513) (Venom)

high Nessus Plugin ID 83459
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

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)

After installing this update, shut down all running virtual machines.
Once all virtual machines have shut down, start them again for this update to take effect.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?27e26f53

Plugin Details

Severity: High

ID: 83459

File Name: sl_20150513_qemu_kvm_on_SL7_x.nasl

Version: 2.11

Type: local

Agent: unix

Published: 5/14/2015

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.7

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:libcacard, p-cpe:/a:fermilab:scientific_linux:libcacard-devel, p-cpe:/a:fermilab:scientific_linux:libcacard-tools, p-cpe:/a:fermilab:scientific_linux:qemu-img, p-cpe:/a:fermilab:scientific_linux:qemu-kvm, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-common, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-debuginfo, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-tools, x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/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