CVE:CVE-2015-8138
CNNVD:CNNVD-201601-668
NTP（Network Time Protocol，网络时间协议）是一款通过网络同步计算机时钟的协议。
NTP 4.2.8p6之前的版本和4.3.90之前的4.3.x版本中存在安全漏洞。远程攻击者可借助带有源时间戳为零的数据包利用该漏洞绕过源时间戳验证。
solution:Upgrade ntp ntp to a higher version than *:p5,4.3.0,4.3.1,4.3.2,4.3.3,4.3.4,4.3.5,4.3.6,4.3.7,4.3.8,4.3.10,4.3.11,4.3.12,4.3.13,4.3.14,4.3.15,4.3.16,4.3.17,4.3.18,4.3.19,4.3.20,4.3.21,4.3.22,4.3.23,4.3.24,4.3.25,4.3.26,4.3.27,4.3.28,4.3.29,4.3.30,4.3.31,4.3.32,4.3.33,4.3.34,4.3.35,4.3.36,4.3.37,4.3.38,4.3.39,4.3.40,4.3.41,4.3.42,4.3.43,4.3.44,4.3.45,4.3.46,4.3.47,4.3.48,4.3.49,4.3.50,4.3.51,4.3.52,4.3.53,4.3.54,4.3.55,4.3.56,4.3.57,4.3.58,4.3.59,4.3.60,4.3.61,4.3.62,4.3.63,4.3.64,4.3.65,4.3.66,4.3.67,4.3.68,4.3.69,4.3.70,4.3.71,4.3.72,4.3.73,4.3.74,4.3.75,4.3.76,4.3.77,4.3.78,4.3.79,4.3.80,4.3.81,4.3.82,4.3.83,4.3.84,4.3.85,4.3.86,4.3.87,4.3.88,4.3.89,and avoid the version *:p5,4.3.0,4.3.1,4.3.2,4.3.3,4.3.4,4.3.5,4.3.6,4.3.7,4.3.8,4.3.10,4.3.11,4.3.12,4.3.13,4.3.14,4.3.15,4.3.16,4.3.17,4.3.18,4.3.19,4.3.20,4.3.21,4.3.22,4.3.23,4.3.24,4.3.25,4.3.26,4.3.27,4.3.28,4.3.29,4.3.30,4.3.31,4.3.32,4.3.33,4.3.34,4.3.35,4.3.36,4.3.37,4.3.38,4.3.39,4.3.40,4.3.41,4.3.42,4.3.43,4.3.44,4.3.45,4.3.46,4.3.47,4.3.48,4.3.49,4.3.50,4.3.51,4.3.52,4.3.53,4.3.54,4.3.55,4.3.56,4.3.57,4.3.58,4.3.59,4.3.60,4.3.61,4.3.62,4.3.63,4.3.64,4.3.65,4.3.66,4.3.67,4.3.68,4.3.69,4.3.70,4.3.71,4.3.72,4.3.73,4.3.74,4.3.75,4.3.76,4.3.77,4.3.78,4.3.79,4.3.80,4.3.81,4.3.82,4.3.83,4.3.84,4.3.85,4.3.86,4.3.87,4.3.88,4.3.89