SuSE 10 Security Update : Xen (ZYPP Patch Number 7703)

medium Nessus Plugin ID 56618
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 SuSE 10 host is missing a security-related patch.

Description

This update fixes various bugs in XEN :

The following security issues have been fixed :

- A denial of service (Host Crash) in the XEN hypervisor.
(CVE-2011-2901)

- A bug was found in the way Xen handles CPUID instruction emulation during VM exits. An unprivileged guest user can potentially use this flaw to crash the guest.
(CVE-2011-1936)

- A 64-bit guest can get one of its vcpus into non-kernel mode without first providing a valid non-kernel pagetable. The observed failure mode was usually a hard lockup of the host (host denial of service).
(CVE-2011-1166)

It fixes also the following bugs :

- SLES 10 SP3 XEN: Device /dev/xvdp is already connected error when starting multiple vm's. (bnc#654798)

- HVM taking too long to dump vmcore. (bnc#684297)

Solution

Apply ZYPP patch number 7703.

See Also

http://support.novell.com/security/cve/CVE-2011-1166.html

http://support.novell.com/security/cve/CVE-2011-1936.html

http://support.novell.com/security/cve/CVE-2011-2901.html

Plugin Details

Severity: Medium

ID: 56618

File Name: suse_xen-201108-7703.nasl

Version: 1.10

Type: local

Agent: unix

Published: 10/24/2011

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.5

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

Vulnerability Information

CPE: cpe:/o:suse:suse_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Patch Publication Date: 8/23/2011

Reference Information

CVE: CVE-2011-1166, CVE-2011-1936, CVE-2011-2901