OpenSSL 0.9.8i on the Gaisler Research LEON3 SoC on the Xilinx Virtex-II Pro FPGA uses a Fixed Width Exponentiation (FWE) algorithm for certain signature calculations, and does not verify the signature before providing it to a caller, which makes it easier for physically proximate attackers to determine the private key via a modified supply voltage for the microprocessor, related to a “fault-based attack.”
rdist.root.org/2010/03/08/attacking-rsa-exponentiation-with-fault-injection/
www.eecs.umich.edu/~valeria/research/publications/DATE10RSA.pdf
www.networkworld.com/news/2010/030410-rsa-security-attack.html
www.osvdb.org/62808
www.theregister.co.uk/2010/03/04/severe_openssl_vulnerability/
exchange.xforce.ibmcloud.com/vulnerabilities/56750