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

This script is Copyright (C) 2011-2014 Tenable Network Security, Inc.


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)

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

Solution :

Apply ZYPP patch number 7703.

Risk factor :

Medium / CVSS Base Score : 5.5
(CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:C)

Family: SuSE Local Security Checks

Nessus Plugin ID: 56618 ()

Bugtraq ID:

CVE ID: CVE-2011-1166
CVE-2011-1936
CVE-2011-2901

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