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CVE-2012-5513

Vincent (CVE) Danen's picture
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.

Details Source

Mitre

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.

Public Date

2012-12-03 00:00:00

Impact

Important

Bugzilla

CVE-2012-5513 kernel: xen: XENMEM_exchange may overwrite hypervisor memory

Bugzilla ID

877 391

CVSS Status

verified

Base Score

7.40

Base Metrics

AV:A/AC:M/Au:S/C:C/I:C/A:C

Acknowledgements

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

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (kernel) RHSA-2012:1540 2012-12-04

CWE

CWE-119

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kernel-xen Affected