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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(IBM Issues Fix for IBM AIX) OpenSSL Integer Overflow in ssl3_get_client_hello() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1037286
SecurityTracker URL:  http://securitytracker.com/id/1037286
CVE Reference:   CVE-2016-2177   (Links to External Site)
Date:  Nov 15 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenSSL. A remote user can cause denial of service conditions on the target system.

A remote user can send specially crafted data to trigger an integer overflow in ssl3_get_client_hello() and potentially cause the target service to crash.

Guido Vranken reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.
Solution:   IBM has issued a fix for IBM AIX:

For OpenSSL 1.0.1: openssl-1.0.1.517.tar.Z
For OpenSSL 1.0.2: openssl-1.0.2.1000.tar.Z
For OpenSSL 1.0.1 FIPS: openssl-20.13.101.500.tar.Z
For OpenSSL 1.0.2 FIPS: openssl-20.13.102.1000.tar.Z

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/openssl_advisory21.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/openssl_advisory21.asc (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1, 7.2

Message History:   This archive entry is a follow-up to the message listed below.
Jun 14 2016 OpenSSL Integer Overflow in ssl3_get_client_hello() Lets Remote Users Deny Service



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