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

Medium Nessus Plugin ID 92998


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


Security Fix(es) :

- Quick Emulator(Qemu) built with the Block driver for iSCSI images support (virtio-blk) is vulnerable to a heap buffer overflow issue. It could occur while processing iSCSI asynchronous I/O ioctl(2) calls. A user inside guest could use this flaw to crash the Qemu process resulting in DoS or potentially leverage it to execute arbitrary code with privileges of the Qemu process on the host. (CVE-2016-5126)

- Quick emulator(Qemu) built with the virtio framework is vulnerable to an unbounded memory allocation issue. It was found that a malicious guest user could submit more requests than the virtqueue size permits. Processing a request allocates a VirtQueueElement and therefore causes unbounded memory allocation on the host controlled by the guest. (CVE-2016-5403)


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 92998

File Name: sl_20160811_qemu_kvm_on_SL7_x.nasl

Version: $Revision: 2.2 $

Type: local

Agent: unix

Published: 2016/08/17

Modified: 2016/10/19

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.9

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


Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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: 2016/08/11

Reference Information

CVE: CVE-2016-5126, CVE-2016-5403