Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:31.ntpd.asc
ftp://ftp.netbsd.org/pub/NetBSD/misc/security/advisories/NetBSD-SA2001-004.txt.asc
ftp://ftp.sco.com/SSE/sse073.ltr
ftp://ftp.sco.com/SSE/sse074.ltr
archives.neohapsis.com/archives/bugtraq/2001-04/0127.html
archives.neohapsis.com/archives/bugtraq/2001-04/0225.html
archives.neohapsis.com/archives/bugtraq/2001-04/0314.html
distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000392
lists.suse.com/archives/suse-security-announce/2001-Apr/0000.html
marc.info/?l=bugtraq&m=98642418618512&w=2
marc.info/?l=bugtraq&m=98654963328381&w=2
marc.info/?l=bugtraq&m=98659782815613&w=2
marc.info/?l=bugtraq&m=98679815917014&w=2
marc.info/?l=bugtraq&m=98683952401753&w=2
marc.info/?l=bugtraq&m=98684202610470&w=2
marc.info/?l=bugtraq&m=98684532921941&w=2
www.calderasystems.com/support/security/advisories/CSSA-2001-013.0.txt
www.linux-mandrake.com/en/security/2001/MDKSA-2001-036.php3
www.osvdb.org/805
www.redhat.com/support/errata/RHSA-2001-045.html
www.securityfocus.com/bid/2540
exchange.xforce.ibmcloud.com/vulnerabilities/6321
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3831
www.debian.org/security/2001/dsa-045