CVE-2011-2189 describes a denial-of-service vulnerability in the Linux kernel (versions 2.6.32 and earlier), specifically within the net/core/net_namespace.c component, affecting distributions like Canonical, Debian, Linux, and Red Hat. This flaw allows remote attackers to exhaust system memory by rapidly creating and cleaning up network namespaces, particularly when interacting with daemons like vsftpd that utilize separate namespaces per connection. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity leading to high availability impact. While not listed in CISA's KEV catalog or currently active on the Hot List, an exploit (EDB-36425) exists for Linux Kernel 2.6.35, and there is no significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.6.32CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | ||
2.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* | ||
10.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:*:*:*:* | ||
10.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.