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Category:   Application (Security)  >   HPE IceWall Vendors:   HPE
(HP Issues Advisory for HPE IceWall) OpenSSL DSA Signing Constant Timing Bug May Let Remote Users Obtain Potentially Sensitive Information on the Target System
SecurityTracker Alert ID:  1037129
SecurityTracker URL:  http://securitytracker.com/id/1037129
CVE Reference:   CVE-2016-2178   (Links to External Site)
Date:  Oct 27 2016
Impact:   Disclosure of authentication information, Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenSSL. A remote user can obtain potentially sensitive information on the target system. HPE IceWall is affected.

The DSA signing algorithm may fail to run in constant time when the BN_FLG_CONSTTIME flag is set. A remote user may be able to exploit this to obtain potentially sensitive timing information regarding the cryptographic signature process, including the DSA private key.

The original advisory is available at:

http://eprint.iacr.org/2016/594.pdf

Cesar Pereida (Aalto University), Billy Brumley (Tampere University of Technology), and Yuval Yarom (The University of Adelaide and NICTA) reported this vulnerability.

Impact:   A remote user can obtain potentially sensitive timing information regarding the cryptographic signature process, including the DSA private key.
Solution:   HPE has issued an advisory for HPE IceWall.

The HPE advisory is available at:

http://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05302448

Vendor URL:  h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05302448 (Links to External Site)
Cause:   State error
Underlying OS:  UNIX (HP/UX)

Message History:   This archive entry is a follow-up to the message listed below.
Jun 8 2016 OpenSSL DSA Signing Constant Timing Bug May Let Remote Users Obtain Potentially Sensitive Information on the Target System



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