Debian DSA-3181-1 : xen - security update

high Nessus Plugin ID 81748

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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.

Plugin Details

Severity: High

ID: 81748

File Name: debian_DSA-3181.nasl

Version: 1.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/11/2015

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A: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 Ease: No known exploits are available

Patch Publication Date: 3/10/2015

Reference Information

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

BID: 72954, 72955, 73015

DSA: 3181

Detections

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