CVE-2001-0381
The OpenPGP PGP standard allows an attacker to determine the private signature key via a cryptanalytic attack in which the attacker alters the encrypted private key file and captures a single message signed with the signature key.
Date published : 2001-05-24
http://www.securityfocus.com/bid/2673
http://archives.neohapsis.com/archives/bugtraq/2001-03/0252.html