CVE:CVE-2017-12899
CNNVD:CNNVD-201709-711
tcpdump是Tcpdump团队开发的一套运行在命令行下的嗅探工具。该工具主要用于数据包分析和网络流量捕获等。DECnet parser是其中的一个DECnet解析器。
tcpdump 4.9.1及之前的版本中的DECnet解析器的print-decnet.c文件的‘decnet_print()’函数存在缓冲区溢出漏洞。远程攻击者可利用该漏洞造成拒绝服务（缓冲区越边界读取和应用程序崩溃）。
solution:Upgrade tcpdump tcpdump to a higher version than 4.9.1,and avoid the version (,4.9.1]; Upgrade debian debian_linux to a higher version than 9.0,10.0,and avoid the version 9.0,10.0; Upgrade redhat enterprise_linux_desktop to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_server to a higher version than 7.0,and avoid the version 7.0; Upgrade redhat enterprise_linux_server_aus to a higher version than 7.6,7.7,and avoid the version 7.6,7.7