(Solaris Issues Fix for Solaris WAN Boot) OpenSSL RSA Signatures Can Be Forged
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SecurityTracker Alert ID: 1017436 |
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SecurityTracker URL: http://securitytracker.com/id/1017436
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CVE Reference:
CVE-2006-4339
(Links to External Site)
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Updated: Jul 25 2007
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Original Entry Date: Dec 22 2006
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Impact:
Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): Solaris 9, 10
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Description:
A vulnerability was reported in OpenSSL. A remote user may be able to forge certain digital signatures. Solaris WAN Boot 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 has issued a fix for Solaris WAN Boot, which is affected by this OpenSSL vulnerability.
SPARC Platform
* Solaris 10 with patch 121229-02 or later
Note: Systems with the SUNWcry package installed should also install patch 118562-13.
x86 Platform
* Solaris 10 with patch 121230-02 or later
Note: Systems with the SUNWcry package installed should also install patch 118563-13
Sun is working on a fix for Solaris 9.
The Sun advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102759-1
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Vendor URL: sunsolve.sun.com/search/document.do?assetkey=1-26-102759-1&searchclause=security (Links to External Site)
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Cause:
Authentication error
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Underlying OS:
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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: Fri, 22 Dec 2006 16:48:29 -0500
Subject: Security Vulnerability With RSA Signatures Affects Solaris WAN Boot
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http://sunsolve.sun.com/search/document.do?assetkey=1-26-102759-1
CVE-2006-4339
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