VAR-202007-0644

Vulnerability from variot - Updated: 2023-12-18 12:35

RIOT 2020.04 has a buffer overflow in the base64 decoder. The decoding function base64_decode() uses an output buffer estimation function to compute the required buffer capacity and validate against the provided buffer size. The base64_estimate_decode_size() function calculates the expected decoded size with an arithmetic round-off error and does not take into account possible padding bytes. Due to this underestimation, it may be possible to craft base64 input that causes a buffer overflow. RIOT Exists in a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. RIOT RIOT-OS is a set of operating systems used in the field of Internet of Things. Remote attackers can use this vulnerability to execute arbitrary code on the system with the help of specially crafted parameters

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