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CVE Database

CVE-2012-3516

Impact: Important
Public: 2012-09-05
CWE: CWE-863
Bugzilla: 851202: CVE-2012-3516 kernel: xen: grant table entry swaps have inadequate bounds checking

Details

The MITRE CVE dictionary describes this issue as:

The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.

Find out more about CVE-2012-3516 from the MITRE CVE dictionary and NIST NVD.

Statement

Not vulnerable.

This issue did not 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

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

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

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.