CVE:CVE-2021-33737
CNNVD:CNNVD-202109-828
Siemens SIAMTIC CP343-1是德国西门子（Siemens）公司的一款通信模块。
Siemens SIAMTIC CP343-1存在缓冲区错误漏洞，该漏洞源于将特制数据包发送到受影响设备的端口 102/tcp 可能会导致拒绝服务情况。需要重新启动才能恢复正常操作。以下产品及版本受到影响：SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions)。
solution:Upgrade siemens simatic_cp_343-1_firmware to a higher version than *; Upgrade siemens simatic_cp_343-1_advanced_firmware to a higher version than *; Upgrade siemens simatic_cp_343-1_erpc_firmware to a higher version than *; Upgrade siemens simatic_cp_343-1_lean_firmware to a higher version than *; Upgrade siemens simatic_cp_443-1_firmware to a higher version than *; Upgrade siemens simatic_cp_443-1_advanced_firmware to a higher version than *