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CVE Database

CVE-2012-5513

Impact: Important
Public: 2012-12-03
CWE: CWE-119
Bugzilla: 877391: CVE-2012-5513 kernel: xen: XENMEM_exchange may overwrite hypervisor memory

Details

The MITRE CVE dictionary describes this issue as:

The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.

Find out more about CVE-2012-5513 from the MITRE CVE dictionary and NIST NVD.

Statement

This issue did affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.

This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.

CVSS v2 metrics

Base Score: 7.4
Base Metrics: AV:A/AC:M/Au:S/C:C/I:C/A:C
Access Vector: Adjacent Network
Access Complexity: Medium
Authentication: Single Instance
Confidentiality Impact: Complete
Integrity Impact: Complete
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 version 5 (kernel) RHSA-2012:1540 December 04, 2012

External References

Acknowledgements

Red Hat would like to thank the Xen project for reporting this issue.

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.