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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2141
Reference (s):
- BID:75467
- URL: http://www.securityfocus.com/bid/75467
- http://sourceforge.net/p/cryptopp/code/542/
- https://github.com/weidai11/cryptopp/commit/9425e16437439e68c7d96abef922167d68fafaff
- DEBIAN:DSA-3296