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Insecure Library Loading
Not critical

KDE KRunner Lock Module Race Condition Weakness

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Release Date:  2010-02-18    Last Update:  2010-03-08    Views:  2,319

Secunia Advisory SA38600

Where:

Local system

Impact:

Security Bypass

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A weakness has been reported in KDE, which can be exploited by malicious people with physical access to bypass certain security restrictions.

The weakness is caused due to a race condition within the KRunner lock module when forking password validating processes, which can be exploited to e.g. cause a hang or potentially cause a crash, which can lead to e.g. a screen locked with KScreenSaver to be unlocked.

The weakness is reported in KDE 4.4.0. Other versions are not affected.


Solution:
Apply patch:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Reported by various persons.

Original Advisory:
http://www.kde.org/info/security/advisory-20100217-1.txt
http://bugs.kde.org/show_bug.cgi?id=217882

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: KDE KRunner Lock Module Race Condition Weakness

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