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Category:   Application (Generic)  >   Oracle Java SE Vendors:   Sun
(Oracle Issues Fix for Java SE) Mozilla Firefox MD5 Signature Support in TLS ServerKeyExchange Messages Exposes Users to Hash Collision Forgery Attacks
SecurityTracker Alert ID:  1034714
SecurityTracker URL:  http://securitytracker.com/id/1034714
CVE Reference:   CVE-2015-7575   (Links to External Site)
Date:  Jan 19 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6u105, 7u91, 8u66
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can conduct hash collision forgery attacks. Oracle Java SE 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:   Sun has issued a fix for CVE-2015-7575 for Oracle Java SE as part of the January 2016 Oracle Critical Patch Update.

The Oracle advisory is available at:

http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html

Vendor URL:  www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any), UNIX (Solaris - SunOS), 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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