Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20141020)

low Nessus Plugin ID 78622
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 information leak flaw was found in the way QEMU's VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest. (CVE-2014-3615)

This update also fixes the following bug :

- This update fixes a regression in the scsi_block_new_request() function, which caused all read requests to through SG_IO if the host cache was not used.

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?e18a4778

Plugin Details

Severity: Low

ID: 78622

File Name: sl_20141020_qemu_kvm_on_SL7_x.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/22/2014

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

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-guest-agent, 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

Patch Publication Date: 10/20/2014

Vulnerability Publication Date: 11/1/2014

Reference Information

CVE: CVE-2014-3615