Internet Bug Bounty: CVE-2019-1551: rsaz_512_sqr overflow bug on x86_64

The CVE-2019-1551 vulnerability was an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli in the OpenSSL library. The vulnerability was found and reported by researchers. The issue was mitigated in the 1.1.1 and 1.0.2 versions of OpenSSL...

Breaking the Zeppelin Ransomware Encryption Scheme

Brian Krebs writes about how the Zeppelin ransomware encryption scheme was broken: The researchers said their break came when they understood that while Zeppelin used three different types of encryption keys to encrypt files, they could undo the whole scheme by factoring or computing just one of...