What is CVE-2011-2189?

CVE-2011-2189 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400). CVE-2011-2189 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-2189?

CVE-2011-2189 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2011-2189?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2011-2189 patch availability.

Is CVE-2011-2189 actively exploited?

CVE-2011-2189 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2011-2189

High

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.

Package Linux Kernel

Published 2011-10-10

Last modified 2026-04-29

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-400

CVE-2011-2189 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

References

14 total

Debian Security
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373

Exploit Mailing List Third Party Advisory
Bugs
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095

Exploit Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=711134

Exploit Issue Tracking Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=711245

Exploit Issue Tracking Patch Third Party Advisory
Patchwork
http://patchwork.ozlabs.org/patch/88217/

Mailing List Patch Third Party Advisory

Showing 5 of 14 references View all on NVD

Details

CVE ID CVE-2011-2189

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2011-10-10

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-2189?

CVE-2011-2189 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . CVE-2011-2189 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-2189?

CVE-2011-2189 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2011-2189?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2011-2189 patch availability.
Is CVE-2011-2189 actively exploited?

No. CVE-2011-2189 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.