Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : vsftpd vulnerability (USN-1288-1)

Ubuntu Security Notice (C) 2011-2016 Canonical, Inc. / NASL script (C) 2011-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

It was discovered that the 2.6.35 and earlier Linux kernel 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) in applications that require a
separate namespace per connection, like vsftpd. This update adjusts
vsftpd to only use network namespaces on kernels that are known to be
not affected.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected vsftpd package.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 57038 ()

Bugtraq ID:

CVE ID: CVE-2011-2189