CVE-2015-2141 - Examinational Hodgie

Description

The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm which allows remote attackers to obtain private keys via a timing attack.

Reference

http://www.debian.org/security/2015/dsa-3296 http://sourceforge.net/p/cryptopp/code/542/ https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff http://lists.opensuse.org/opensuse-updates/2015-07/msg00047.html http://www.securityfocus.com/bid/75467