CVE-2012-4535

Impact:
Moderate
Public Date:
2012-11-13
Bugzilla:
870086: CVE-2012-4535 kernel: xen: VCPU timer overflow leads to PCPU deadlock and host death-by-watchdog

The MITRE CVE dictionary describes this issue as:

Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline."

Find out more about CVE-2012-4535 from the MITRE CVE dictionary 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 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
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 5 (kernel) RHSA-2012:1540 2012-12-04

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kernel-xen Will not fix

Acknowledgements

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

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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