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high7.5Public exploit code

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…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
through 2.6.32
RedhatEnterprise Linux
Version 6.0
RedhatEnterprise Mrg
Version 2.0
CanonicalUbuntu Linux
Versions 10.04, 10.10, 11.04, 11.10
DebianDebian Linux
Versions 5.0, 6.0, 7.0

Weakness classification

CWE-400

References