Buffer overflow in htdigest in Apache 2.0.52 may allow attackers to execute arbitrary code via a long realm argument. NOTE: since htdigest is normally only locally accessible and not setuid or setgid, there are few attack vectors which would lead to an escalation of privileges, unless htdigest is executed from a CGI program. Therefore this may not be a vulnerability.
lists.apple.com/archives/security-announce/2005//Aug/msg00001.html
lists.apple.com/archives/security-announce/2005/Aug/msg00000.html
lists.apple.com/archives/security-announce/2005/May/msg00001.html
www.lucaercoli.it/advs/htdigest.txt
www.osvdb.org/12848
www.securiteam.com/unixfocus/5EP061FEKC.html
www.securityfocus.com/bid/13537