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Insecure Library Loading
Moderately critical

OpenSSL "ssl3_get_key_exchange()" Use-After-Free Vulnerability

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Release Date:  2010-08-09    Last Update:  2010-08-20    Views:  5,336

Secunia Advisory SA40906

Where:

From remote

Impact:

DoS, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


A vulnerability has been discovered in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.

The vulnerability is caused due to a use-after-free error within the "ssl3_get_key_exchange()" function in ssl/s3_clnt.c and can be exploited by e.g. tricking a client into connecting to a malicious server.

The vulnerability is confirmed in version 1.0.0a. Other versions may also be affected.


Solution:
Connect to trusted servers only.

Provided and/or discovered by:
Georgi Guninski

Original Advisory:
http://archives.neohapsis.com/archives/fulldisclosure/2010-08/0085.html

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: OpenSSL "ssl3_get_key_exchange()" Use-After-Free Vulnerability

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