(Sun Issues Fix for Sun Secure Global Desktop) OpenSSL RSA Signatures Can Be Forged
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SecurityTracker Alert ID: 1017014 |
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SecurityTracker URL: http://securitytracker.com/id/1017014
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CVE Reference:
CVE-2006-4339
(Links to External Site)
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Updated: Dec 8 2006
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Original Entry Date: Oct 9 2006
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Impact:
Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in OpenSSL. A remote user may be able to forge certain digital signatures. Sun Secure Global Desktop is affected.
If an RSA key with exponent 3 is used, a remote user may be able to forge a PKCS #1 v1.5 signature for that key.
Software that uses PKCS #1 v1.5 may be affected. Software that uses OpenSSL to verify X.509 certificates may also be affected.
Daniel Bleichenbacher reported the type of attack that is possible against PKCS #1 v1.5 signatures.
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Impact:
A remote user may be able to forge signatures (and certificates).
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Solution:
Sun Secure Global Desktop is affected by this vulnerability. Sun has issued a fixed version (4.3) for SPARC, x86, and Linux, available at:
http://www.sun.com/download/products.xml?id=451d9816
The Sun advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102657-1
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Cause:
Authentication error
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Underlying OS:
Linux (Any), UNIX (Solaris - SunOS)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Mon, 9 Oct 2006 08:22:15 -0400
Subject: Security Vulnerability With RSA Signature Affects the Sun Secure Global Desktop Software
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http://sunsolve.sun.com/search/document.do?assetkey=1-26-102657-1
CVE-2006-4339
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