CVE-2021-43057
Estado: ModificadaAlta (7.8)—
An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.
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: 0.49%
- Percentil entre todas las CVEs puntuadas: 40
- Fecha de la puntuación: 7/10/2026
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 (9)
CWE
- CWE-416
Referencias
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2229
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7
- https://security.netapp.com/advisory/ntap-20211125-0001/
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2229
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7
- https://security.netapp.com/advisory/ntap-20211125-0001/
JSON original (NVD)
Mostrar
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