[core] Validate IPv6 XOR-MAPPED-ADDRESS length in STUN parser - #3115
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`switch_stun_packet_attribute_get_xor_mapped_address()` read and XOR-rewrote a 16-byte IPv6 address whenever the `family` byte was 2, without checking the attribute value was that long. Reject `family == 2` values shorter than `sizeof(switch_stun_ipv6_t)` and clear the output address and port. Adds a regression test.
andywolk
approved these changes
Aug 8, 2026
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switch_stun_packet_attribute_get_xor_mapped_address()read and XOR-rewrote a 16-byte IPv6 address whenever thefamilybyte was 2, without checking the attribute value was that long. Rejectfamily == 2values shorter thansizeof(switch_stun_ipv6_t)and clear the output address and port. Adds a regression test.