CVE-2011-2189
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 17.85% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 97.0% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-10-10 10:00Z15 YR AGO
- Last updated
- 2024-08-06 22:53Z2 YR AGO
- Reserved
- 2011-05-31
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 4ddb5a31c15494bd09f14fd6849ec373f6a2ee669b99db623c300e368f6512ec
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=711245
- bugs.launchpad.nethttps://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095
- neil.brown.namehttp://neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730f
- www.openwall.com[oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connectionhttp://www.openwall.com/lists/oss-security/2011/06/06/20
- www.openwall.com[oss-security] 20110606 Re: CVE Request -- vsftpd -- Do not create network namespace per connectionhttp://www.openwall.com/lists/oss-security/2011/06/06/10
- ie.archive.ubuntu.comhttp://ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33
- www.debian.orgDSA-2305http://www.debian.org/security/2011/dsa-2305
- patchwork.ozlabs.orghttp://patchwork.ozlabs.org/patch/88217/
- kerneltrap.org[git-commits-head] 20091208 net: Automatically allocate per namespace data.http://kerneltrap.org/mailarchive/git-commits-head/2009/12/8/15289
- bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373
- www.ubuntu.comUSN-1288-1http://www.ubuntu.com/usn/USN-1288-1
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730f
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=711134
07 Fixed in
Debian 12
- vsftpd Fixed in 2.3.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- vsftpd Fixed in 2.3.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- vsftpd Fixed in 2.3.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.