CVE-2026-116013
CVE-2026-116013 · OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 6.3 · Media · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
lua-resty-dns
- Versiones
- ≥ 0, < 0.24: Afectada (custom)
Actualiza a 0.24
lua-nginx-dns Debian:12
- Versiones
- 0.20-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
lua-nginx-dns Debian:13
- Versiones
- 0.20-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
lua-nginx-dns Debian:14
- Versiones
- 0.20-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
Fuentes originales
- 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://nvd.nist.gov/vuln/detail/CVE-2026-116013