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CVE Database

CVE-2011-2901

Impact: Moderate
Public: 2011-08-30
Bugzilla: 728042: CVE-2011-2901 kernel: xen: off-by-one shift in x86_64 __addr_ok()
IAVA: 2012-A-0020

Details

The MITRE CVE dictionary describes this issue as:

Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.

Find out more about CVE-2011-2901 from the MITRE CVE dictionary and NIST NVD.

Statement

The versions of the Linux kernel as shipped with Red Hat Enterprise Linux 4, 6,
and Red Hat Enterprise MRG are not affected. This has been addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2011-1212.html.

CVSS v2 metrics

Base Score: 5.5
Base Metrics: AV:A/AC:L/Au:S/C:N/I:N/A:C
Access Vector: Adjacent Network
Access Complexity: Low
Authentication: Single Instance
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux EUS (v. 5.6 server) (kernel) RHSA-2011:1813 December 13, 2011
Red Hat Enterprise Linux version 5 (kernel) RHSA-2011:1212 September 06, 2011

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.