(Sun Issues Fix for JRE/JSEE) OpenSSL RSA Signatures Can Be Forged
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SecurityTracker Alert ID: 1017237 |
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SecurityTracker URL: http://securitytracker.com/id/1017237
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CVE Reference:
CVE-2006-4339
(Links to External Site)
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Date: Nov 16 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 JRE/JSEE 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 the following fixes for JRE/JSEE, which is affected by this OpenSSL vulnerability.
* JDK and JRE 5.0 Update 9 or later
* SDK and JRE 1.4.2_13 or later
* JSSE 1.0.3_04 or later
This issue will be addressed in SDK and JRE 1.3.1_20.
J2SE 1.4.2 is available for download at:
* http://java.sun.com/j2se/1.4.2/download.html
J2SE 5.0 is available for download at the following links:
* http://java.sun.com/j2se/1.5.0/download.jsp
* http://java.com
J2SE 5.0 Update 9 for Solaris is available in the following patches:
* J2SE 5.0: update 9 (as delivered in patch 118666-09)
* J2SE 5.0: update 9 (as delivered in patch 118667-09 (64bit))
* J2SE 5.0_x86: update 9 (as delivered in patch 118668-09)
* J2SE 5.0_x86: update 9 (as delivered in patch 118669-09 (64bit))
JSSE 1.0.3_04 is available at:
* http://java.sun.com/products/jsse/index-103.html
The Sun advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102686-1
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Vendor URL: www.openssl.org/news/secadv_20060905.txt (Links to External Site)
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Cause:
Authentication error
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Underlying OS:
Linux (Any), UNIX (Solaris - SunOS), Windows (Any)
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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: Wed, 15 Nov 2006 23:03:33 -0500
Subject: Security Vulnerability in RSA Signature Verification Affects Java 2 Platform, Standard Edition
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http://sunsolve.sun.com/search/document.do?assetkey=1-26-102686-1
CVE-2006-4339
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