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Category:   Application (Game)  >   IBM Tivoli Provisioning Manager Vendors:   IBM
(IBM Issues Fix for IBM Tivoli Provisioning Manager for OS Deployment) OpenSSL bn_sqrx8x_internal() Carry Bug Lets Remote Users Obtain Potentially Sensitive Information on the Target System in Certain Cases
SecurityTracker Alert ID:  1040353
SecurityTracker URL:  http://securitytracker.com/id/1040353
CVE Reference:   CVE-2017-3736   (Links to External Site)
Date:  Feb 8 2018
Impact:   Disclosure of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.1.1, 7.1.1
Description:   A vulnerability was reported in OpenSSL. A remote user can obtain potentially sensitive information on the target system in certain cases. IBM Tivoli Provisioning Manager for OS Deployment is affected.

A remote user can exploit a carry propagation flaw in the the x86_64 Montgomery squaring function bn_sqrx8x_internal() to potentially determine information about the private key in certain situations.

Processors that support the BMI1, BMI2, and ADX extensions (e.g., Intel Broadwell 5th generation and later, AMD Ryzen) are affected.

EC algorithms are not affected.

The Google OSS-Fuzz project reported this vulnerability.

Impact:   A remote user can potentially determine information about the private key in certain situations.
Solution:   IBM has issued a fix for IBM Tivoli Provisioning Manager for OS Deployment.

The IBM advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=swg22012836

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=swg22012836 (Links to External Site)
Cause:   State error

Message History:   This archive entry is a follow-up to the message listed below.
Nov 2 2017 OpenSSL bn_sqrx8x_internal() Carry Bug Lets Remote Users Obtain Potentially Sensitive Information on the Target System in Certain Cases



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