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

high Nessus Plugin ID 83532
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 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: 2.17

Type: local

Agent: unix

Published: 5/19/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.4

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

Temporal Vector: 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: 5/18/2015

Exploitable With

Core Impact

Reference Information

CVE: CVE-2015-3456

BID: 74640

DSA: 3262

IAVA: 2015-A-0115