Ubuntu 11.04 / 11.10 : ubuntu-sso-client vulnerability (USN-1464-1)

Medium Nessus Plugin ID 59395


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


It was discovered that the Ubuntu Single Sign On Client incorrectly validated server certificates when using HTTPS connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to alter or compromise confidential information.

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.


Update the affected ubuntu-sso-client package.

Plugin Details

Severity: Medium

ID: 59395

File Name: ubuntu_USN-1464-1.nasl

Version: $Revision: 1.5 $

Type: local

Agent: unix

Published: 2012/06/07

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:ubuntu-sso-client, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:11.10

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

Patch Publication Date: 2012/06/06

Reference Information

CVE: CVE-2011-4408

OSVDB: 82747

USN: 1464-1