[SA19280] Gnome Screensaver Password Bypass Vulnerability

TITLE:
Gnome Screensaver Password Bypass Vulnerability

SECUNIA ADVISORY ID:
SA19280

VERIFY ADVISORY:
http://secunia.com/advisories/19280/

CRITICAL:
Not critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
GNOME Screensaver 2.x
http://secunia.com/product/8800/

DESCRIPTION:
Sam Morris has reported a vulnerability in gnome-screensaver, which
can be exploited by a malicious person with physical access to a
system to bypass the password protected screensaver.

If the X server is running with the "AllowDeactivateGrabs" and
"AllowClosedownGrabs" options set, it is possible to kill the
screensaver process via hotkey combinations and reveal the desktop.

The vulnerability has been reported in version 2.13. Prior versions
may also be affected.

SOLUTION:
The vulnerability has reportedly been fixed in version 2.14.

PROVIDED AND/OR DISCOVERED BY:
Sam Morris

ORIGINAL ADVISORY:
http://bugzilla.gnome.org/show_bug.cgi?id=326663

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/

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