GNOME Screensaver Compiz security bypass
| gnomescreensaver-compiz-security-bypass (37410) |  Medium Risk |
Description:
GNOME Screensaver when running under Compiz, could allow a local attacker to bypass security restrictions. A local attacker could exploit this vulnerability to cause the keyboard to lose lock focus and bypass the victim's secured screen saver.
*CVSS:
| Base Score: | 3.6 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 2.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Bypass Security
Remedy:
For Ubuntu Linux:
Refer to USN-537-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- GNOME Screensaver Web site: GnomeScreensaver.
- BID-26188: Gnome-Screensaver With Compiz Lock Bypass Vulnerability
- CVE-2007-3920: GNOME screensaver 2.20 in Ubuntu 7.10, when used with Compiz, does not properly reserve input focus, which allows attackers with physical access to take control of the session after entering an Alt-Tab sequence, a related issue to CVE-2007-3069.
- RHSA-2008-0485: Low: compiz security update
- SUSE-SA:2008:027: X.org security problems
- USN-537-1: gnome-screensaver vulnerability
- USN-537-2: Compiz vulnerability
Platforms Affected:
- Canonical Ubuntu 7.10
- GNOME GNOME Screensaver 2.20
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell Open Enterprise Server
- Novell OpenSUSE 10.2
- Novell OpenSUSE 10.3
- Novell SLE SDK 10 SP2
- Novell SLE SDK 10 SP1
- Novell SLE SDK 10
- Novell SUSE Linux Enterprise Desktop 10 SP1
- Novell SUSE Linux Enterprise Desktop 10 SP2
- Novell SUSE Linux Enterprise Server 10
- Novell SUSE Linux Enterprise Server 10 SP1
- Novell SUSE Linux Enterprise Server 10 SP2
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux Optional Productivity Applications 5 Server
- SuSE SuSE SLES 9
Reported:
Oct 23, 2007
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* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.