Toktok Toxcore vulnerabilities

CVE-2021-44847 [CRITICAL] CWE-682 CVE-2021-44847: A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 an A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet.

CVE-2018-25021 [HIGH] CWE-404 CVE-2018-25021: The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain cond The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service (DoS).

CVE-2018-25022 [LOW] CWE-200 CVE-2018-25022: The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which a The Onion module in toxcore before 0.2.2 doesn't restrict which packets can be onion-routed, which allows a remote attacker to discover a target user's IP address (when knowing only their Tox Id) by positioning themselves close to target's Tox Id in the DHT for the target to establish an onion connection with the attacker, guessing the target's DHT pub