(HP Issues Fix for Tru64 UNIX) OpenSSL RSA Signatures Can Be Forged
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SecurityTracker Alert ID: 1017918 |
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SecurityTracker URL: http://securitytracker.com/id/1017918
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CVE Reference:
CVE-2006-4339
(Links to External Site)
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Date: Apr 16 2007
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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.
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:
HP has issued the following fixes.
HP Tru64 UNIX Version 5.1B-4 ERP Kit
Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001167-V51BB27-ES-20070321
Name: T64KIT1001167-V51BB27-ES-20070321
MD5 Checksum: a697a90bd0b1116b6f27d1100bbf81fd
HP Tru64 UNIX Version 5.1B-3 ERP Kit
Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001163-V51BB26-ES-20070315
Name: T64KIT1001163-V51BB26-ES-20070315
MD5 Checksum: d376d403176f0dbe7badd4df4e91c126
HP Insight Management Agents for Tru64 UNIX patch version 3.6.1 (for kit CPQIIM360)
Location: http://h30097.www3.hp.com/cma/patches.html
Name: CPQIM360.SSL.01.tar.gz
MD5 Checksum: 1001a10ab642461c87540826dfe28652
The HP advisory is available at:
http://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144
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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:
UNIX (Tru64)
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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, 16 Apr 2007 11:05:54 -0400
Subject: http://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144
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CVE-2006-2937, CVE-2006-2940, CVE-2006-3738, CVE-2006-4339 (SSL)
CVE-2007-0493, CVE-2007-0494 (BIND)
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