CVE-2017-18075
Estado: ModificadaAlta (7.8)—
crypto/pcrypt.c en el kernel de Linux en versiones anteriores a la 4.14.13 gestiona de manera incorrecta la liberación de instancias, lo que permite que un usuario local acceda a la interfaz AEAD basada en AF_ALG (CONFIG_CRYPTO_USER_API_AEAD) y pcrypt (CONFIG_CRYPTO_PCRYPT) para provocar una denegación de servicio (kfree de un puntero incorrecto) o, posiblemente, causar otro tipo de impacto sin especificar mediante la ejecución de una secuencia manipulada de llamadas del sistema.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.39%
- Percentil entre todas las CVEs puntuadas: 31
- Fecha de la puntuación: 11/10/2026
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 (2)
CWE
- CWE-763
Referencias
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
- http://www.securityfocus.com/bid/102813
- https://access.redhat.com/errata/RHSA-2018:2948
- https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
- http://www.securityfocus.com/bid/102813
- https://access.redhat.com/errata/RHSA-2018:2948
- https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
JSON original (NVD)
Mostrar
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