An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
{ "ubuntu_priority": "medium", "availability": "No subscription required", "binaries": [ { "binary_name": "ntp", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10" }, { "binary_name": "ntp-dbgsym", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10" }, { "binary_name": "ntp-doc", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10" }, { "binary_name": "ntpdate", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10" }, { "binary_name": "ntpdate-dbgsym", "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10" } ] }
{ "ubuntu_priority": "medium", "availability": "No subscription required", "binaries": [ { "binary_name": "ntp", "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3" }, { "binary_name": "ntp-dbgsym", "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3" }, { "binary_name": "ntp-doc", "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3" }, { "binary_name": "ntpdate", "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3" }, { "binary_name": "ntpdate-dbgsym", "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3" } ] }