CVE ID:	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.
Test IDs:	1.3.6.1.4.1.25623.1.0.71020   1.3.6.1.4.1.25623.1.0.70399   1.3.6.1.4.1.25623.1.0.840831
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2011-2189 DSA-2305 http://www.debian.org/security/2011/dsa-2305 USN-1288-1 http://www.ubuntu.com/usn/USN-1288-1 [git-commits-head] 20091208 net: Automatically allocate per namespace data. http://kerneltrap.org/mailarchive/git-commits-head/2009/12/8/15289 [oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connection http://www.openwall.com/lists/oss-security/2011/06/06/10 [oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connection http://www.openwall.com/lists/oss-security/2011/06/06/20 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730f http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730f http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712 http://ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33 http://ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33 http://neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730f http://neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730f http://patchwork.ozlabs.org/patch/88217/ http://patchwork.ozlabs.org/patch/88217/ https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095 https://bugzilla.redhat.com/show_bug.cgi?id=711134 https://bugzilla.redhat.com/show_bug.cgi?id=711134 https://bugzilla.redhat.com/show_bug.cgi?id=711245 https://bugzilla.redhat.com/show_bug.cgi?id=711245