The logconfigcommand function in ntp_parser.y in ntpd in NTP before 4.2.7p42 allows remote attackers to cause a denial of service (ntpd crash) via crafted logconfig commands.
{ "ubuntu_priority": "negligible", "availability": "No subscription required", "binaries": [ { "binary_name": "ntp", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5" }, { "binary_name": "ntp-dbgsym", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5" }, { "binary_name": "ntp-doc", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5" }, { "binary_name": "ntpdate", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5" }, { "binary_name": "ntpdate-dbgsym", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5" } ] }