Debian DSA-3262-1 : xen - security update (Venom)

High Nessus Plugin ID 83532

Synopsis

The remote Debian host is missing a security-related update.

Description

Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. This only affects HVM guests.

Solution

Upgrade the xen packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 4.1.4-3+deb7u6.

The stable distribution (jessie) is already fixed through the qemu update provided as DSA-3259-1.

See Also

https://packages.debian.org/source/wheezy/xen

https://www.debian.org/security/2015/dsa-3262

Plugin Details

Severity: High

ID: 83532

File Name: debian_DSA-3262.nasl

Version: 2.15

Type: local

Agent: unix

Published: 2015/05/19

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.7

Temporal Score: 6.4

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xen, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2015/05/18

Exploitable With

Core Impact

Reference Information

CVE: CVE-2015-3456

BID: 74640

DSA: 3262

IAVA: 2015-A-0115