CVE-2011-2484

Impact:
Moderate
Public Date:
2011-06-16
IAVA:
2012-A-0148, 2012-A-0153
Bugzilla:
715436: CVE-2011-2484 kernel: taskstats: duplicate entries in listener mode can lead to DoS

The MITRE CVE dictionary describes this issue as:

The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.

Find out more about CVE-2011-2484 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 4 as it did not provide support for the Taskstats interface. This was fixed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1386.html, https://rhn.redhat.com/errata/RHSA-2011-1350.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.

CVSS v2 metrics

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-2011:1350 2011-10-05
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:1386 2011-10-20
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2011:1253 2011-09-12

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 kernel Not affected

Acknowledgements

Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.

Last Modified

CVE description copyright © 2017, The MITRE Corporation