The PostgreSQL authentication modules (1) mod_auth_pgsql 0.9.5, and (2) mod_auth_pgsql_sys 0.9.4, allow remote attackers to bypass authentication and execute arbitrary SQL via a SQL injection attack on the user name.Referenceshttp://www.securityfocus.com/bid/3251http://rhn.redhat.com/errata/RHSA-2001-124.htmlhttp://marc.info/?l=bugtraq&m=99911895901812&w=2ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:03.mod_auth_pgsql.aschttp://archives.neohapsis.com/archives/vulnwatch/2001-q3/0040.htmlhttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000427http://www.securityfocus.com/bid/3253http://www.iss.net/security_center/static/7054.phphttps://exchange.xforce.ibmcloud.com/vulnerabilities/7059