ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12", "binary_name": "ntp" }, { "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12", "binary_name": "ntp-dbgsym" }, { "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12", "binary_name": "ntp-doc" }, { "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12", "binary_name": "ntpdate" }, { "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12", "binary_name": "ntpdate-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8", "binary_name": "ntp" }, { "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8", "binary_name": "ntp-dbgsym" }, { "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8", "binary_name": "ntp-doc" }, { "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8", "binary_name": "ntpdate" }, { "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8", "binary_name": "ntpdate-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "ntp" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "ntp-dbgsym" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "ntp-doc" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "ntpdate" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "ntpdate-dbgsym" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "sntp" }, { "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1", "binary_name": "sntp-dbgsym" } ] }