GHSA-879w-j376-3fgqMediumCVSS 3.7
OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in...
🔗 CVE IDs covered (1)
📋 Description
OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in parse_section() and _decode_name() that fails to check resource record lengths against the received message. Attackers controlling or spoofing a queried nameserver can send truncated record headers or RDATA, raising uncaught Lua exceptions in resolver:query() that abort requests and break name resolution.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-116013
- https://github.com/openresty/lua-resty-dns/pull/83
- https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758
- https://github.com/openresty/lua-resty-dns/blob/v0.23/lib/resty/dns/resolver.lua#L396-L442
- https://github.com/openresty/lua-resty-dns/tree/v0.24
- https://www.vulncheck.com/advisories/openresty-lua-resty-dns-before-0.24-denial-of-service-via-dns-response-parsing
- https://github.com/advisories/GHSA-879w-j376-3fgq