exploit the possibilities

Secunia Security Advisory 50129

Secunia Security Advisory 50129
Posted Aug 6, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A weakness has been reported in gnome-screensaver, which can be exploited by malicious people with physical access to bypass certain security restrictions.

tags | advisory
MD5 | b10c5d27f8f8e55231a8cf25d1897d15

Secunia Security Advisory 50129

Change Mirror Download
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Seamless integration with your existing security solutions Sign-up to
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TITLE:
gnome-screensaver Lock Screen Bypass Weakness

SECUNIA ADVISORY ID:
SA50129

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50129/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50129

RELEASE DATE:
2012-08-06

DISCUSS ADVISORY:
http://secunia.com/advisories/50129/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/50129/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=50129

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness has been reported in gnome-screensaver, which can be
exploited by malicious people with physical access to bypass certain
security restrictions.

The weakness is caused due to gnome-screensaver not properly locking
the secondary monitor screen when running in dual monitor setup,
which can be exploited to e.g. access the secondary monitors via the
mouse.

The weakness is reported in versions 3.4.2 and 3.4.3 when running
Gnome 2.11.4 or later.

SOLUTION:
Update to version 3.4.4.

PROVIDED AND/OR DISCOVERED BY:
Georgi Yonchev in a bug report.

ORIGINAL ADVISORY:
https://bugzilla.gnome.org/show_bug.cgi?id=679441

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

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

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

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


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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