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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(IBM Issues Fix for IBM AIX) OpenSSLX.509 IPAddressFamily Buffer Overread Lets Remote Users Cause Certificate Text to Be Displayed Incorrectly
SecurityTracker Alert ID:  1040016
SecurityTracker URL:  http://securitytracker.com/id/1040016
CVE Reference:   CVE-2017-3735   (Links to External Site)
Date:  Dec 15 2017
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenSSL. A remote user can cause the certificate text to be displayed incorrectly.

A remote user can create an X.509 certificate with a specially crafted IPAddressFamily extension data that, when displayed by the target user, will trigger a one byte overread and cause the certificate text to be displayed incorrectly.

The Google OSS-Fuzz project reported this vulnerability.

Impact:   A remote user can cause the certificate text to be displayed incorrectly.
Solution:   IBM has issued a fix for IBM AIX.

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/openssl_advisory24.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.
Nov 2 2017 OpenSSLX.509 IPAddressFamily Buffer Overread Lets Remote Users Cause Certificate Text to Be Displayed Incorrectly



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