FreeBSD : qemu -- buffer overflow vulnerability in VNC (2b3b4c27-b0c7-11e5-8d13-bc5ff45d0f28)

High Nessus Plugin ID 87689


The remote FreeBSD host is missing one or more security-related updates.


Prasad J Pandit, Red Hat Product Security Team, reports :

Qemu emulator built with the VNC display driver support is vulnerable to a buffer overflow flaw leading to a heap memory corruption issue.
It could occur while refreshing the server display surface via routine vnc_refresh_server_surface().

A privileged guest user could use this flaw to corrupt the heap memory and crash the Qemu process instance OR potentially use it to execute arbitrary code on the host.


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 87689

File Name: freebsd_pkg_2b3b4c27b0c711e58d13bc5ff45d0f28.nasl

Version: $Revision: 2.1 $

Type: local

Published: 2016/01/04

Modified: 2016/01/04

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:qemu, p-cpe:/a:freebsd:freebsd:qemu-devel, p-cpe:/a:freebsd:freebsd:qemu-sbruno, p-cpe:/a:freebsd:freebsd:qemu-user-static, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2016/01/01

Vulnerability Publication Date: 2015/08/17

Reference Information

CVE: CVE-2015-5225