CVE-2016-7055 – openssl: Carry propagating bug in Montgomery multiplication

https://notcve.org/view.php?id=CVE-2016-7055

10 Nov 2016 — There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure in OpenSSL 1.0.2 and 1.1.0 before 1.1.0c that handles input lengths divisible by, but longer than 256 bits. Analysis suggests that attacks against RSA, DSA and DH private keys are impossible. This is because the subroutine in question is not used in operations with the private key itself and an input of the attacker's direct choice. Otherwise the bug can manifest itself as transient authentication and key negotiat... • http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html • CWE-682: Incorrect Calculation •