High severity7.5NVD Advisory· Published Oct 10, 2011· Updated Jun 16, 2026
CVE-2011-2189
CVE-2011-2189
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
14- patchwork.ozlabs.org/patch/88217/nvdMailing ListPatchThird Party Advisory
- bugs.debian.org/cgi-bin/bugreport.cginvdExploitMailing ListThird Party Advisory
- bugs.launchpad.net/ubuntu/+source/linux/+bug/720095nvdExploitThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingPatchThird Party Advisory
- www.debian.org/security/2011/dsa-2305nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2011/06/06/10nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2011/06/06/20nvdMailing ListThird Party Advisory
- www.ubuntu.com/usn/USN-1288-1nvdThird Party Advisory
- ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33nvdBroken Link
- kerneltrap.org/mailarchive/git-commits-head/2009/12/8/15289nvdBroken Link
- git.kernel.orgnvd
- git.kernel.orgnvd
- neil.brown.name/gitnvd
News mentions
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