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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
OpenSSL ECC Scalar Multiplication Lets Local Users View Keys in Certain Cases
SecurityTracker Alert ID:  1042070
SecurityTracker URL:  http://securitytracker.com/id/1042070
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Nov 12 2018
Impact:   Disclosure of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in OpenSSL. A local user can obtain keys on the target system.

A local user with sufficient resources to conduct an ECC scalar multiplication timing attack can determine an ECDSA signature generation key.

Version 1.1.1 is not affected.

Version 1.1.0i is already corrected.

Alejandro Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia, and Nicola Tuveri reported this vulnerability.

Impact:   A local user can obtain a key on the target system.
Solution:   The vendor has issued a source code fix.

The vendor advisory is available at:

https://www.openssl.org/news/secadv/20181112.txt

Vendor URL:  www.openssl.org/news/secadv/20181112.txt (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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