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* wolfssl: fixes for CVE-2018-16870 & CVE-2019-13628Eneas U de Queiroz2019-08-171-0/+98
CVE-2018-16870: medium-severity, new variant of the Bleichenbacher attack to perform downgrade attacks against TLS, which may lead to leakage of sensible data. Backported from 3.15.7. CVE-2019-13628 (currently assigned-only): potential leak of nonce sizes when performing ECDSA signing operations. The leak is considered to be difficult to exploit but it could potentially be used maliciously to perform a lattice based timing attack. Backported from 4.1.0. Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>