Threats affecting pkg:github/lwip-tcpip/lwip

lwIP versions up to 2.2.1 have a stack out-of-bounds write vulnerability in the mdns_handle_response function. This flaw allows attackers on the local network to send malformed mDNS responses with invalid domain names, causing a stack buffer overflow. Specifically, oversized RDLENGTH values in multicast PTR answers or undersized RDLENGTH values below 6 in SRV answers during service searches can overflow a 256-byte stack buffer, potentially crashing the device.

A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Performing a manipulation of the argument msgAuthenticationParameters results in stack-based buffer overflow. The attack may be initiated remotely. The patch is named 0c957ec03054eb6c8205e9c9d1d05d90ada3898c. It is suggested to install a patch to address this issue. Two separate issue reports were submitted to the project. Their processing was merged as a duplicate.