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veracodeVeracode Vulnerability DatabaseVERACODE:5366
HistoryNov 03, 2017 - 2:16 a.m.

Carry Propagation

2017-11-0302:16:40
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
28

EPSS

0.002

Percentile

54.3%

OpenSSL is vulnerable to a carry propagation issue with the x86_64 Montgomery squaring procedure. This attack can be carried out against unpatched systems using a target private key with persistent DH parameters and a private key which is shared with multiple clients. This could in some circumstances lead to information disclosure as it makes it easier to deduce information about the private key. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.