Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2011-2189 — Uncontrolled Resource Consumption in Kernel

CWE-400 — Uncontrolled Resource Consumption10 documents9 sources
Severity
7.5HIGHNVD
EPSS
7.6%
top 8.11%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
6
Vsftpd Project VsftpdLinux KernelCanonical Ubuntu Linux+3 more
Timeline
PublishedOct 10
Latest updateMay 13

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDlinux/linux_kernel2.6.32
▶Debianvsftpd_project/vsftpd< 2.3.4-1+3

Also affects: Debian Linux 5.0, 6.0, 7.0, Ubuntu Linux 10.04, 10.10, 11.04, 11.10, Enterprise Linux 6.0

Patches

Patch: patchwork.ozlabs.org ↗Patch: bugzilla.redhat.com ↗Patch: patchwork.ozlabs.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-cwc9-v946-jvqj: net/core/net_namespace↗2022-05-13
▶
OSV
CVE-2011-2189: net/core/net_namespace↗2011-10-10
▶
CVEList
CVE-2011-2189: net/core/net_namespace↗2011-10-10
▶

💥Exploits & PoCs

1
Exploit-DB
Linux Kernel 2.6.35 - Network Namespace Remote Denial of Service↗2011-12-06
▶

📋Vendor Advisories

3
Ubuntu
vsftpd vulnerability↗2011-12-07
▶
Red Hat
kernel: net_ns: oom killer fires because of slow net_ns cleanup↗2011-02-16
▶
Debian
CVE-2011-2189: vsftpd - net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properl...↗2011
▶

💬Community

2
Bugzilla
CVE-2011-2189 kernel: net_ns: oom killer fires because of slow net_ns cleanup [fedora-all]↗2011-10-26
▶
Bugzilla
CVE-2011-2189 kernel: net_ns: oom killer fires because of slow net_ns cleanup↗2011-06-06
▶
CVE-2011-2189 — Uncontrolled Resource Consumption | cvebase