The leafnode server in leafnode 1.9.20 to 1.9.29 allows remote attackers to cause a denial of service (infinite loop) when leafnode requests a cross-posted article to one group whose name is a prefix of another group.
leafnode.sourceforge.net/leafnode-SA-2002-01.txt
marc.info/?l=bugtraq&m=104127108823436&w=2
marc.info/?l=bugtraq&m=104152295210075&w=2
secunia.com/advisories/7799
secunia.com/advisories/7801
secunia.com/advisories/7870
www.mandriva.com/security/advisories?name=MDKSA-2003:005
www.securityfocus.com/bid/6490
www.securitytracker.com/id?1005865
exchange.xforce.ibmcloud.com/vulnerabilities/10942