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nvd-json-data-feeds/CVE-2017/CVE-2017-183xx/CVE-2017-18344.json
cad-safe-bot 9d8babeec3 Auto-Update: 2024-07-14T02:00:17.787041+00:00
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{
"id": "CVE-2017-18344",
"sourceIdentifier": "cve@mitre.org",
"published": "2018-07-26T19:29:00.427",
"lastModified": "2020-10-15T13:28:10.487",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE)."
},
{
"lang": "es",
"value": "La implementaci\u00f3n de llamada del sistema timer_create en kernel/time/posix-timers.c en el kernel de Linux en versiones anteriores a la 4.14.8 no valida correctamente el campo sigevent->sigev_notify, conduciendo a un acceso fuera de l\u00edmites en la funci\u00f3n show_timer (que se llama cuando se lee /proc/$PID/timers). Esto permite que las aplicaciones del espacio del usuario lean memoria del kernel arbitraria (en un kernel construido con CONFIG_POSIX_TIMERS y CONFIG_CHECKPOINT_RESTORE)."
}
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"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM"
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