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Category:   OS (UNIX)  >   IBM AIX Vendors:   IBM
(IBM Issues Fix for IBM AIX) Mozilla Firefox MD5 Signature Support in TLS ServerKeyExchange Messages Exposes Users to Hash Collision Forgery Attacks
SecurityTracker Alert ID:  1036466
SecurityTracker URL:  http://securitytracker.com/id/1036466
CVE Reference:   CVE-2015-7575   (Links to External Site)
Date:  Jul 27 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.3, 6.1, 7.1, 7.2
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can conduct hash collision forgery attacks. IBM AIX 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 AIX.

For 5.3.12: IV86120
For 6.1.9: IV86116
For 7.1.3: IV86117
For 7.1.4: IV86118
For 7.2.0: IV86119, IV86132

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/nettcp_advisory2.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/nettcp_advisory2.asc (Links to External Site)
Cause:   State error
Underlying OS:  UNIX (AIX)

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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