The DNS map code in Sendmail 8.12.8 and earlier, when using the "enhdnsbl" feature, does not properly initialize certain data structures, which allows remote attackers to cause a denial of service (process crash) via an invalid DNS response that causes Sendmail to free incorrect data.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < 94d8de83286fb1827340eba35b61c308f6b46ead |