NTP Daemon CRYPTO_NAK Denial Of Service Vulnerability (CVE-2016-4957)

  Severity: HIGH

  DESCRIPTION

A denial of service vulnerability exists in the Network Time Protocol daemon (NTPD). The vulnerability is due to a null pointer dereference when handling crypto-NAK packets. A remote attacker can exploit this vulnerability by sending an unsolicited crypto-NAK packet to the target service. Successful exploitation may result in denial-of-service conditions.

  TREND MICRO PROTECTION INFORMATION

Apply associated Trend Micro DPI Rules.

  SOLUTION

  Trend Micro Deep Security DPI Rule Number: 1008086