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Category:   Application (Web Server/CGI)  >   IBM WebSphere MQ Vendors:   IBM
(IBM Issues Fix for IBM WebSphere MQ) OpenSSL Multiple Bugs Let Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1038210
SecurityTracker URL:  http://securitytracker.com/id/1038210
CVE Reference:   CVE-2016-6306   (Links to External Site)
Date:  Apr 8 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.3.1 on NonStop Server
Description:   Multiple vulnerabilities were reported in OpenSSL. A remote user can cause the target service or application to crash. IBM WebSphere MQ is affected.

A remote user can send a specially crafted SHA512 TLS session ticket to trigger an out-of-bounds memory read error and cause the target server to crash [CVE-2016-6302].

A remote user can trigger an integer overflow in the MDC2_Update() function in 'crypto/mdc2/mdc2dgst.c' and cause the target service to crash in certain cases [CVE-2016-6303].

A remote user can trigger an out-of-bounds memory read error in the processing of certain TLS/SSL protocol handshake messages and cause the target application or service to crash [CVE-2016-6306]. Version 1.1.0 is not affected.

A remote user can trigger a memory allocation error in tls_get_message_header() to temporarily consume excessive memory resources on the target system [CVE-2016-6307]. DTLS users are not affected. Version 1.1.0 is affected.

A remote user can trigger a memory allocation error in dtls1_preprocess_fragment() to temporarily consume excessive memory resources on the target system [CVE-2016-6308]. TLS users are not affected. Version 1.1.0 is affected.

Shi Lei (Gear Team, Qihoo 360 Inc.) reported these vulnerabilities.

Impact:   A remote user can cause the target service or application to crash.
Solution:   IBM has issued a fix for CVE-2016-6306 for IBM WebSphere MQ on NonStop Server (APAR IT18692).

The IBM advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=swg21999421

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=swg21999421 (Links to External Site)
Cause:   Access control error, Boundary error, Resource error

Message History:   This archive entry is a follow-up to the message listed below.
Sep 23 2016 OpenSSL Multiple Bugs Let Remote Users Cause the Target Service to Crash



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