CVE:CVE-2017-12902
CNNVD:CNNVD-201708-773
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。Zephyr parser是其中的一个物联网操作解析器。
tcpdump 4.9.2之前的版本中的Zephyr解析器的print-zephyr.c文件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