[Pkg-xen-devel] Bug#451626: CVE-2007-5907, CVE-2007-5906 possible denial of service vulnerability

[Nico Golde]

Package: xen-3
Version: 3.1.0-1
Severity: grave
Tags: security patch

Hi,
the following CVE (Common Vulnerabilities & Exposures) id was
published for xen-3.

CVE-2007-5907[0]:
| Xen 3.1.1 does not prevent modification of the CR4 TSC from
| applications, which allows pv guests to cause a denial of service
| (crash).

CVE-2007-5906[1]:
| Xen 3.1.1 allows virtual guest system users to cause a 
| denial of service (hypervisor crash) by using a debug 
| register (DR7) to set certain breakpoints.

If you fix this vulnerability please also include the CVE id
in your changelog entry.

A patch for these issues is linked on the mitre website.
The xen version in etch is also affected.

For further information:
[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5907
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5906

Kind regards
Nico

-- 
Nico Golde - http://www.ngolde.de - nion at jabber.ccc.de - GPG: 0x73647CFF
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