7.5Alta
CVE-2026-119760sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()
Descripción
sniproxy through 0.7.0 contains a NULL pointer dereference vulnerability in resolv_cancel() that allows remote unauthenticated attackers to crash the daemon by sending overlong hostnames. Attackers can send a 254 or 255 character TLS SNI name or HTTP Host header matching a wildcard backend, then close the connection to terminate the proxy.
Debilidad (CWE):
CWE-476
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| dlundquist | sniproxy | ≤ 0.7.0 | |
| sniproxy project | sniproxy | ≤ 0.7.0 |
Referencias y parches
- https://github.com/dlundquist/sniproxy/issues/411 issue-tracking
- https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/connection.c#L737-L738 technical-description
- https://github.com/dlundquist/sniproxy/blob/1cc625ea41796695a54593d1bd779366b82b8b4e/src/resolv.c#L219-L224 technical-description
- https://github.com/renaudallard/sniproxy/commit/d5d78290c8fe15d9aa12185d2c57739b7b0c6a6b patch
- https://github.com/renaudallard/sniproxy/commit/17986ba7397297313331297cac3b9eb3f0ba96b7 patch
- https://github.com/dlundquist/sniproxy product
- VulnCheck Advisory: sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel() third-party-advisory