In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.
- https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340
- https://web.archive.org/web/20250410130356/https://lapis-sawfish-be3.notion.site/0-day-Comman-memory-Leak-190dc00d01d080688472d322c93c4340
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