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

high Nessus Plugin ID 57038

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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.

See Also

https://usn.ubuntu.com/1288-1/

Plugin Details

Severity: High

ID: 57038

File Name: ubuntu_USN-1288-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 12/7/2011

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:11.04, p-cpe:/a:canonical:ubuntu_linux:vsftpd, cpe:/o:canonical:ubuntu_linux:11.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 12/6/2011

Vulnerability Publication Date: 10/10/2011

Reference Information

CVE: CVE-2011-2189

USN: 1288-1