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Insecure Library Loading
Not critical

Gaim-Encryption Malformed Encrypted Message Denial of Service

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Release Date:  2005-11-25    Last Update:  2006-02-03    Views:  10,056

Secunia Advisory SA17739

Where:

From remote

Impact:

DoS

Solution Status:

Unpatched

CVE Reference(s):

Description


Joerg Kurlbaum has discovered a weakness in Gaim-Encryption, which can be exploited by malicious people to cause a DoS (Denial of Service).

The weakness is caused due to an error in the "GE_received_key()" function of "keys.c" when using the "sscanf()" function to determine the start position of the key in an encrypted message. This can be exploited to crash Gaim via a malformed encrypted message if the Gaim-Encryption plugin is enabled.

The weakness has been confirmed in version 2.38 on Gaim v1.3.1-0.fc4. Other versions may also be affected.


Solution:
Disable the Gaim-Encryption plugin when not sending encrypted messages.

Provided and/or discovered by:
Joerg Kurlbaum

Original Advisory:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=337127

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: Gaim-Encryption Malformed Encrypted Message Denial of Service

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