Mozilla Firefox Certificate Signatures Can Be Forged
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SecurityTracker Alert ID: 1016858
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SecurityTracker URL: http://securitytracker.com/id?1016858
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CVE Reference: CVE-2006-4340
(Links to External Site)
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Date: Sep 15 2006
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Impact: Modification of user information
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: Mozilla Foundation Security Advisory
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Version(s): prior to 1.5.0.7
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Description: A vulnerability was reported in Mozilla Firefox. 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.
The vulnerability
resides in the Mozilla Network Security Services (NSS) library.
Daniel Bleichenbacher reported the type of attack that is possible
against PKCS #1 v1.5 signatures.
Philip Mackenzie and Marius Schilder reported that Mozilla is affected.
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Impact: A remote user may be able to forge signatures (and certificates).
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Solution: The vendor has issued a fixed version (1.5.0.7).
The Mozilla advisory is available at:
http://www.mozilla.org/security/announce/2006/mfsa2006-60.html
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Vendor URL: www.mozilla.org/security/announce/2006/mfsa2006-60.html (Links to External Site)
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Cause: Authentication error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Thu, 14 Sep 2006 21:13:42 -0400
Subject: http://www.mozilla.org/security/announce/2006/mfsa2006-60.html
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Mozilla Foundation Security Advisory 2006-60
Title: RSA Signature Forgery
Impact: Critcal
Announced: September 14, 2006
Reporter: Philip Mackenzie, Marius Schilder
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 1.5.0.7
Thunderbird 1.5.0.7
SeaMonkey 1.0.5
Network Sercurity Service (NSS) 3.11.3
CVE-2006-4340
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