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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
SecurityTracker Alert ID:  1036688
SecurityTracker URL:  http://securitytracker.com/id/1036688
CVE Reference:   CVE-2016-2182   (Links to External Site)
Date:  Aug 25 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 the target application to crash.

A remote user can supply a specially crafted value to trigger an out-of-bounds write error in BN_bn2dec() in 'crypto/bn/bn_print.c' and cause the target application using OpenSSL to crash.

Shi Lei reported this vulnerability.

Impact:   A remote user can cause the target application to crash.
Solution:   The vendor has issued a source code fix, available at:

https://git.openssl.org/?p=openssl.git;a=commit;h=07bed46f332fce8c1d157689a2cdf915a982ae34

Vendor URL:  openssl.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 23 2016 (FreeBSD Issues Fix) OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
FreeBSD has issued a fix for FreeBSD 9.3, 10.1, 10.2, 10.3, and 11.0.
Oct 17 2016 (Oracle Issues Fix for Oracle Linux) OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
Oracle has issued a fix for Oracle Linux 5.
Oct 27 2016 (HP Issues Advisory for HPE IceWall) OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
HPE has issued an advisory for HPE IceWall.
Nov 15 2016 (IBM Issues Fix for IBM AIX) OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
IBM has issued a fix for IBM AIX 5.3, 6.1, 7.1, and 7.2.
Mar 1 2017 (Pulse Secure Issues Fix for Pulse Connect Secure) OpenSSL Out-of-Bounds Write Error in BN_bn2dec() Lets Remote Users Cause the Target Application to Crash
Pulse Secure has issued a fix for Pulse Connect Secure.



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