security flaw

Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and migh...

qmail-DoS.txt

Date: Mon, 4 Jan 1999 00:04:09 -0500 From: Wietse Venema To: [email protected] Subject: Anonymous Qmail Denial of Service In recent postings, Daniel Bernstein expands on the insecurity of the Postfix world-writable directory for local mail submission. Of all the attacks possible with such a...