Debian DSA-3181-1 : xen - security update

High Nessus Plugin ID 81748

Synopsis

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

Description

Multiple security issues have been found in the Xen virtualisation solution :

- CVE-2015-2044 Information leak via x86 system device emulation.

- CVE-2015-2045 Information leak in the HYPERVISOR_xen_version() hypercall.

- CVE-2015-2151 Missing input sanitising in the x86 emulator could result in information disclosure, denial of service or potentially privilege escalation.

In addition the Xen developers reported an unfixable limitation in the handling of non-standard PCI devices. Please refer to for further information.

Solution

Upgrade the xen packages.

For the stable distribution (wheezy), these problems have been fixed in version 4.1.4-3+deb7u5.

See Also

https://security-tracker.debian.org/tracker/CVE-2015-2044

https://security-tracker.debian.org/tracker/CVE-2015-2045

https://security-tracker.debian.org/tracker/CVE-2015-2151

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

https://www.debian.org/security/2015/dsa-3181

Plugin Details

Severity: High

ID: 81748

File Name: debian_DSA-3181.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2015/03/11

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:U/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: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/03/10

Reference Information

CVE: CVE-2015-2044, CVE-2015-2045, CVE-2015-2151

BID: 72954, 72955, 73015

DSA: 3181