CVE-2011-2189
28Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendepss 18%
from disclosure to weapon57 days
Published on NVDOct 10
1st PoC+57d
exploitation probability
18%top 3% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
Affected products
n/a · n/apublic PoCs found — 1✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/36425⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730fhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712http://ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33http://kerneltrap.org/mailarchive/git-commits-head/2009/12/8/15289http://neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730fhttp://patchwork.ozlabs.org/patch/88217/https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095https://bugzilla.redhat.com/show_bug.cgi?id=711134https://bugzilla.redhat.com/show_bug.cgi?id=711245http://www.debian.org/security/2011/dsa-2305http://www.openwall.com/lists/oss-security/2011/06/06/10