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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(IBM Issues Fix for AIX) OpenSSL TLS Heartbeat Buffer Overread Lets Remote Users Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1030063
SecurityTracker URL:  http://securitytracker.com/id/1030063
CVE Reference:   CVE-2014-0160   (Links to External Site)
Date:  Apr 11 2014
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 1.0.1 through 1.0.1f; 1.0.2-beta
Description:   A vulnerability was reported in OpenSSL. A remote user can obtain potentially sensitive information.

A remote client or server can trigger a buffer overread in the processing of the TLS heartbeat extension to obtain up to 64k of memory (per heartbeat request), potentially including encryption keys.

The vulnerability was introduced to the source code in December 2011 and to release version 1.0.1 in March 2012.

[Editor's note: This vulnerability is known as the OpenSSL heartbleed vulnerability.]

Neel Mehta of Google Security reported this vulnerability.

Impact:   A remote user can obtain potentially sensitive information, including encryption keys.
Solution:   IBM has issued an ifix that disables the OpenSSL heartbeat option (ifix: 0160_ifix.140409.epkg.Z), available at:

ftp://aix.software.ibm.com/aix/efixes/security/openssl_ifix7.tar

Encryption keys used with vulnerable versions may have been compromised and should be replaced.

The IBM advisory is available at:

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory7.doc

Vendor URL:  www.openssl.org/news/secadv_20140407.txt (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1

Message History:   This archive entry is a follow-up to the message listed below.
Apr 8 2014 OpenSSL TLS Heartbeat Buffer Overread Lets Remote Users Obtain Potentially Sensitive Information



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