Ubuntu 7.10 : gnome-screensaver vulnerability (USN-537-1)

Medium Nessus Plugin ID 28143


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


Jens Askengren discovered that gnome-screensaver became confused when running under Compiz, and could lose keyboard lock focus. A local attacker could exploit this to bypass the user's locked screen saver.

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 gnome-screensaver package.

Plugin Details

Severity: Medium

ID: 28143

File Name: ubuntu_USN-537-1.nasl

Version: $Revision: 1.12 $

Type: local

Agent: unix

Published: 2007/11/10

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.2

Temporal Score: 5.4

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:gnome-screensaver, cpe:/o:canonical:ubuntu_linux:7.10

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2007/10/23

Reference Information

CVE: CVE-2007-3920

BID: 26188

OSVDB: 41988

USN: 537-1