CVE:CVE-2014-7207
CNNVD:CNNVD-201411-030
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。
Linux kernel 3.2.x版本至3.2.63版本中的IPv6实现的Debian补丁中存在安全漏洞，该漏洞源于程序没有正确验证‘ipv6_select_ident’函数调用中的参数。本地攻击者可通过访问tun或macvtap设备利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。
solution:Upgrade linux linux_kernel to a higher version than 3.2,3.2:rc2,3.2:rc3,3.2:rc4,3.2:rc5,3.2:rc6,3.2:rc7,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.2.11,3.2.12,3.2.13,3.2.14,3.2.15,3.2.16,3.2.17,3.2.18,3.2.19,3.2.20,3.2.21,3.2.22,3.2.23,3.2.24,3.2.25,3.2.26,3.2.27,3.2.28,3.2.29,3.2.30,3.2.31,3.2.32,3.2.33,3.2.34,3.2.35,3.2.36,3.2.37,3.2.38,3.2.39,3.2.40,3.2.41,3.2.42,3.2.43,3.2.44,3.2.45,3.2.46,3.2.47,3.2.48,3.2.49,3.2.50,3.2.51,3.2.52,3.2.53,3.2.54,3.2.55,3.2.56,3.2.57,3.2.58,3.2.59,3.2.60,3.2.61,3.2.62,3.2.63,3.25,and avoid the version 3.2,3.2:rc2,3.2:rc3,3.2:rc4,3.2:rc5,3.2:rc6,3.2:rc7,3.2.1,3.2.2,3.2.3,3.2.4,3.2.5,3.2.6,3.2.7,3.2.8,3.2.9,3.2.10,3.2.11,3.2.12,3.2.13,3.2.14,3.2.15,3.2.16,3.2.17,3.2.18,3.2.19,3.2.20,3.2.21,3.2.22,3.2.23,3.2.24,3.2.25,3.2.26,3.2.27,3.2.28,3.2.29,3.2.30,3.2.31,3.2.32,3.2.33,3.2.34,3.2.35,3.2.36,3.2.37,3.2.38,3.2.39,3.2.40,3.2.41,3.2.42,3.2.43,3.2.44,3.2.45,3.2.46,3.2.47,3.2.48,3.2.49,3.2.50,3.2.51,3.2.52,3.2.53,3.2.54,3.2.55,3.2.56,3.2.57,3.2.58,3.2.59,3.2.60,3.2.61,3.2.62,3.2.63,3.25