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 a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

17.85% chance of exploitation in the next 30 days, 97th percentile

Published

2011-10-10

Updated

2024-08-06

Proof-of-concept exploits (2)

• https://bugzilla.redhat.com/show_bug.cgi?id=711134
• https://bugzilla.redhat.com/show_bug.cgi?id=711245

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/36425

References

• CVE Record
• NVD entry

Related

• CVE-2011-2183
• CVE-2011-2194
• CVE-2011-2179
• CVE-2011-2195
• CVE-2011-2174
• CVE-2011-2201