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Category:   Application (Security)  >   IBM Security Access Manager Vendors:   IBM
(IBM Issues Fix for IBM Security Access Manager for Web) Mozilla Firefox MD5 Signature Support in TLS ServerKeyExchange Messages Exposes Users to Hash Collision Forgery Attacks
SecurityTracker Alert ID:  1034948
SecurityTracker URL:  http://securitytracker.com/id/1034948
CVE Reference:   CVE-2015-7575   (Links to External Site)
Date:  Feb 5 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.0, 8.0, 8.0.0.2, 8.0.0.4, 8.0.0.5, 8.0.1, 8.0.1.2, 8.0.1.3, 9.0
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can conduct hash collision forgery attacks. IBM Security Access Manager for Web is affected.

The system allows the use of MD5 server signatures in a TLS 1.2 ServerKeyExchange message. As a result, the system may be subject to hash collision forgery attacks.

Karthikeyan Bhargavan reported this vulnerability.

Impact:   A remote user can conduct hash collision forgery attacks.
Solution:   IBM has issued a fix for IBM Security Access Manager for Web (APAR IV80680 for 7.x, IV80663 and IV80676 for 8.x and 9.x).

The IBM advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=swg21974637

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=swg21974637 (Links to External Site)
Cause:   State error

Message History:   This archive entry is a follow-up to the message listed below.
Dec 28 2015 Mozilla Firefox MD5 Signature Support in TLS ServerKeyExchange Messages Exposes Users to Hash Collision Forgery Attacks



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