CVE-2011-2189

HIGH
7.5
CVSS Score
Published: October 10, 2011 at 10:00 AM UTC
Updated: June 16, 2026 at 11:30 PM UTC
5 products affected across 4 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
HIGH7.5
Exploit prediction
EPSS 18%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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