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Lasso OpenSSL "DSA_verify()" Spoofing Vulnerability
Release Date: 2009-01-08 Views: 3,651
Secunia Advisory SA33449
Where:
From remote
Impact:
Spoofing,
Solution Status:
Vendor Workaround
CVE Reference(s):
Description
A vulnerability has been reported in Lasso, which can be exploited by malicious people to conduct spoofing attacks.
The vulnerability is caused due to the library incorrectly verifying the return value of the "DSA_verify()" OpenSSL function when validating signatures and can be exploited to potentially spoof server responses.
The vulnerability is reported in version 2.2.1. Other versions may also be affected.
Solution:
Fixed in the SVN repository.
Further details available to Secunia VIM customers
Provided and/or discovered by:
Originally reported in OpenSSL by the Google Security Team.
Reported in Lasso by oCERT.
Original Advisory:
oCERT:
http://www.ocert.org/advisories/ocert-2008-016.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: Lasso OpenSSL "DSA_verify()" Spoofing Vulnerability
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