CVE:CVE-2019-18336
CNNVD:CNNVD-202003-468
Siemens SIMATIC S7-300 CPUs等都是德国西门子（Siemens）公司的产品。SIMATIC S7-300 CPUs是一款CPU（中央处理器）模块。SINUMERIK 840D sl是一套高级机床数控系统。SIMATIC TDC CP51M1是一款SIMATIC TDC自动化系统的工业以太网通信模块。
多款Siemens产品中存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。以下产品及版本受到影响：使用3.3.17之前版本固件的Siemens SIMATIC S7-300 CPU；SIMATIC TDC CP51M1 V1.1.8之前的所有版本；SIMATIC TDC CPU555 V1.1.1之前的所有版本；SINUMERIK 840D sl V4.8.6之前的所有版本；SINUMERIK 840D sl V4.94之前的所有版本。
solution:Upgrade siemens simatic_s7-300_cpu_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_312_ifm_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_313_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_314_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_314_ifm_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_315_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_315-2_dp_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_316-2_dp_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens simatic_s7-300_cpu_318-2_firmware to a higher version than 3.3.17,and avoid the version (,3.3.17); Upgrade siemens sinumerik_840d_sl to a higher version than 4.8.6,4.94,and avoid the version (,4.8.6),(,4.94); Upgrade siemens simatic_tdc_cp51m1_firmware to a higher version than 1.1.8,and avoid the version (,1.1.8); Upgrade siemens simatic_tdc_cpu555_firmware to a higher version than 1.1.1,and avoid the version (,1.1.1)