A flaw in sudo, a program that gives limited root privileges to users, could allow a malicious user to obtain full superuser privileges on the local machine. Users can download updates from:
FreeBSD:
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:06.sudo.asc
Debian:
http://www.debian.org/security/2002/dsa-101
Conectiva:
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000451
Red Hat:
https://www.redhat.com/support/errata/RHSA-2002-011.html
Linux-Mandrake:
http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-003.php
EnGarde:
http://ftp.engardelinux.org/pub/engarde/stable/updates/