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HomeDefectsLIN9-3128
Fixed

LIN9-3128 : Security Advisory - openssl - CVE-2017-3732

Created: Feb 5, 2017    Updated: Dec 3, 2018
Resolved Date: Feb 7, 2017
Found In Version: unknown
Fix Version: 9.0.0.3
Severity: Standard
Applicable for: Wind River Linux 9
Component/s: Userspace

Description

There is a carry propagating bug in the x86_64 Montgomery squaring procedure. No
EC algorithms are affected. Analysis suggests that attacks against RSA and DSA
as a result of this defect would be very difficult to perform and are not
believed likely. Attacks against DH are considered just feasible (although very
difficult) because most of the work necessary to deduce information
about a private key may be performed offline. The amount of resources
required for such an attack would be very significant and likely only
accessible to a limited number of attackers. An attacker would
additionally need online access to an unpatched system using the target
private key in a scenario with persistent DH parameters and a private
key that is shared between multiple clients. For example this can occur by
default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very
similar to CVE-2015-3193 but must be treated as a separate problem

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