CVE-2021-33913

libspf2 before 1.2.11 has a heap-based buffer overflow that might allow remote attackers to execute arbitrary code via an unauthenticated e-mail message from anywhere on the Internet with a crafted SPF DNS record, because of SPFrecordexpanddata in spfexpand.c. The amount of overflowed data depend...

Courier Mail Server memory coruuption

Memory corruption on SPF DNS records processing...