ESP-NOW OOB Vulnerability In Group Type Message

ESP-NOW Component provides a connectionless Wi-Fi communication protocol. An Out-of-Bound (OOB) vulnerability was discovered in the implementation of the ESP-NOW group type message because there is no check for the addrs_num field of the group type message. This can result in memory corruption related attacks. Normally there are two fields in the group information that need to be checked, i.e., the addrs_num field and the addrs_list fileld. Since we only checked the addrs_list field, an attacker can send a group type message with an invalid addrs_num field, which will cause the message handled by the firmware to be much larger than the current buffer, thus causing a memory corruption issue that goes beyond the payload length.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

跨界内存读

ESP-NOW 缓冲区错误漏洞

ESP-NOW是Espressif Systems开源的一个 Wi-Fi 通信协议。 ESP-NOW 2.5.1及之前版本存在缓冲区错误漏洞，该漏洞源于实现ESP-NOW组类型消息时未检查addrs_num字段，这可能导致内存损坏相关攻击。

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