CVE-2014-1642

Description

From CVE.org

The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.

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 2 as we did not have support for Xen hypervisor.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

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

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score6.54.4N/A
Attack VectorAdjacent NetworkLocalN/A
Access ComplexityHighMediumN/A
AuthenticationSingleNoneN/A
Confidentiality ImpactCompletePartialN/A
Integrity ImpactCompletePartialN/A
Availability ImpactCompletePartialN/A

Vector

Red Hat: AV:A/AC:H/Au:S/C:C/I:C/A:C

NVD: AV:L/AC:M/Au:N/C:P/I:P/A:P

Acknowledgements

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

Frequently Asked Questions

Not sure what something means? Check out our Security Glossary.

Want to get errata notifications? Sign up here.