漏洞信息
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Vulnerability Title
nanoMODBUS Server-Side Out-of-Bounds Write in handle_read_file_record()
Vulnerability Description
nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus server-side handle_read_file_record function (FC 0x14, Read File Record) in nanomodbus.c. The function validates that the total request size does not exceed 245 bytes and that each sub-request's record_length is at most 124, but it never validates the CUMULATIVE response size across all sub-requests before processing them.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
跨界内存写
Vulnerability Title
Valerio De Benedetto nanoMODBUS 缓冲区错误漏洞
Vulnerability Description
Valerio De Benedetto nanoMODBUS是Valerio De Benedetto个人开发者的一款MODBUS通信协议实现库。 Valerio De Benedetto nanoMODBUS 1.23.0及之前版本存在缓冲区错误漏洞,该漏洞源于Modbus服务器端handle_read_file_record()函数(FC 0x14)未验证累积响应大小,导致uint8_t累积器溢出,可能造成越界写入,进而导致拒绝服务或远程代码执行。
CVSS Information
N/A
Vulnerability Type
N/A