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CVE-2011-4611

Impact:
Moderate
Public Date:
2011-03-16
Bugzilla:
767914: CVE-2011-4611 kernel: perf, powerpc: Handle events that raise an exception without overflowing

The MITRE CVE dictionary describes this issue as:

Integer overflow in the perf_event_interrupt function in arch/powerpc/kernel/perf_event.c in the Linux kernel before 2.6.39 on powerpc platforms allows local users to cause a denial of service (unhandled performance monitor exception) via vectors that trigger certain outcomes of performance events.

Find out more about CVE-2011-4611 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4 and 5 as they did not have support for Performance event. It did not affect Red Hat Enterprise MRG as it did not provide support for PowerPC. This has been addressed in Red Hat Enterprise Linux 6 via https://rhn.redhat.com/errata/RHSA-2012-0350.html.

CVSS v2 metrics

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

Base Score 4.9
Base Metrics AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
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 6 (kernel) RHSA-2012:0350 2012-03-06

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected
Red Hat Enterprise Linux 4 kernel Not affected

Acknowledgements

Red Hat would like to thank Maynard Johnson for reporting this issue.

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