CVE-2017-12932
Estado: ModificadaCrítica (9.8)—
Ext/standard/var_unserializer.re en PHP en en sus versiones 7.0.x hasta 7.0.22 y versiones 7.1.x hasta 7.1.8 es propenso a un uso de memoria dinámica antes de liberación (heap use after free) al deserializar datos que no son de confianza. Esto está relacionado con el uso incorrecto de la API hash para borrado de claves en una situación de tamaño de array no válido. La explotación de este problema puede tener un impacto sin especificar en la integridad de PHP.
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 7.42%
- Percentil entre todas las CVEs puntuadas: 94
- Fecha de la puntuación: 17/10/2026
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-416
Referencias
- http://php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/100427
- https://access.redhat.com/errata/RHSA-2018:1296
- https://access.redhat.com/errata/RHSA-2019:2519
- https://bugs.php.net/bug.php?id=74103
- https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
- https://security.gentoo.org/glsa/201709-21
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.debian.org/security/2018/dsa-4080
- http://php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/100427
- https://access.redhat.com/errata/RHSA-2018:1296
- https://access.redhat.com/errata/RHSA-2019:2519
- https://bugs.php.net/bug.php?id=74103
- https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
- https://security.gentoo.org/glsa/201709-21
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.debian.org/security/2018/dsa-4080
JSON original (NVD)
Mostrar
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