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Overview

Vulnerability Score 4.3 4.3
CVE Id CVE-2009-0050
Last Modified 30 Oct 2012 11:13:09
Published 07 Jan 2009 01:30:15
Confidentiality Impact NONE NONE
Integrity Impact PARTIAL PARTIAL
Availability Impact NONE NONE
Access Vector NETWORK
Access Complexity MEDIUM
Authentication NONE

CVE-2009-0050

Summary

Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

Vulnerable Systems

Application

  • Entrouvert Lasso 1.9.9.0

  • Entrouvert Lasso 2.0.0-1

  • Entrouvert Lasso 2.2.1-0

  • Lasso 1.9.9.0

  • Lasso 2.0.0-1

  • Lasso 2.2.1-0


References

XF - openssl-dsa-verify-security-bypass(47837)

MISC - http://www.ocert.org/advisories/ocert-2008-016.html

BUGTRAQ - 20090107 [oCERT-2008-016] Multiple OpenSSL signature verification API misuses


Last Updated: 27 May 2016 10:58:19