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Category:   Application (Generic)  >   IBM iNotes and Domino Vendors:   IBM
(IBM Issues Fix for IBM Lotus Notes) Mozilla Firefox MD5 Signature Support in TLS ServerKeyExchange Messages Exposes Users to Hash Collision Forgery Attacks
SecurityTracker Alert ID:  1035176
SecurityTracker URL:  http://securitytracker.com/id/1035176
CVE Reference:   CVE-2015-7575   (Links to External Site)
Date:  Mar 3 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.0.1.3, 9.0.1.4, 9.0.1.5
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can conduct hash collision forgery attacks. IBM Lotus Notes 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 Lotus Notes.

9.0.1 Fixpack 5 IF 2 (for Windows)
9.0.1 Fixpack 5 IF 1 (for Linux)
9.0.1 IF1 (for Mac 64-bit platform)

IBM has assigned SPR KLYHA5YRVP to this vulnerability.

The IBM advisory is available at:

https://www-304.ibm.com/support/docview.wss?uid=swg21975290

Vendor URL:  www-304.ibm.com/support/docview.wss?uid=swg21975290 (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any), UNIX (macOS/OS X), Windows (Any)

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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