CVE-2011-2189

Impact:
Moderate
Public Date:
2011-02-16
Bugzilla:
711245: CVE-2011-2189 kernel: net_ns: oom killer fires because of slow net_ns cleanup

The MITRE CVE dictionary describes this issue as:

net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.

Find out more about CVE-2011-2189 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not include support for Network Namespaces. A future kernel update in Red Hat Enterprise MRG may address this issue. The risks associated with fixing this flaw outweigh the benefits of the fix, therefore Red Hat does not plan to fix this flaw in Red Hat Enterprise Linux 6.

CVSS v2 metrics

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

Base Score 4.6
Base Metrics AV:L/AC:L/Au:S/C:N/I:N/A:C
Access Vector Local
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).

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Will not fix
Red Hat Enterprise Linux 6 kernel Will not fix
Red Hat Enterprise Linux 5 kernel Not affected
Red Hat Enterprise Linux 4 kernel Not affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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