CVE-2003-0971 Information

Description

GnuPG (GPG) 1.0.2 and other versions up to 1.2.3 creates ElGamal type 20 (sign+encrypt) keys using the same key component for encryption as for signing which allows attackers to determine the private key from a signature.

Reference

ftp://patches.sgi.com/support/free/security/advisories/20040202-01-U.asc http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000798 http://lists.gnupg.org/pipermail/gnupg-announce/2003q4/000276.html http://lists.gnupg.org/pipermail/gnupg-announce/2003q4/000277.html http://marc.info/?l=bugtraq&m=106995769213221&w=2 http://secunia.com/advisories/10304 http://secunia.com/advisories/10349 http://secunia.com/advisories/10399 http://secunia.com/advisories/10400 http://www.debian.org/security/2004/dsa-429 http://www.kb.cert.org/vuls/id/940388 http://www.mandriva.com/security/advisories?name=MDKSA-2003:109 http://www.novell.com/linux/security/advisories/2003_048_gpg.html http://www.redhat.com/support/errata/RHSA-2003-390.html http://www.redhat.com/support/errata/RHSA-2003-395.html http://www.securityfocus.com/bid/9115 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A10982