CVE-2023-30847
Estado: ModificadaAlta (8.2)—
H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Puntuación base: 8.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.90%
- Percentil entre todas las CVEs puntuadas: 58
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-824
Referencias
- https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33
- https://github.com/h2o/h2o/pull/3229
- https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx
- https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33
- https://github.com/h2o/h2o/pull/3229
- https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx
JSON original (NVD)
Mostrar
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