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nvd-json-data-feeds/CVE-2021/CVE-2021-332xx/CVE-2021-33200.json
cad-safe-bot e6cbafdc40 Auto-Update: 2024-12-08T03:00:18.988682+00:00
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{
"id": "CVE-2021-33200",
"sourceIdentifier": "cve@mitre.org",
"published": "2021-05-27T13:15:08.300",
"lastModified": "2024-11-21T06:08:30.313",
"vulnStatus": "Modified",
"cveTags": [],
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{
"lang": "en",
"value": "kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit."
},
{
"lang": "es",
"value": "El archivo kernel/bpf/verifier.c en el kernel de Linux versiones hasta 5.12.7, aplica l\u00edmites incorrectos para operaciones aritm\u00e9ticas de puntero, tambi\u00e9n se conoce como CID-bb01a1bba579. Esto puede ser abusado para llevar a cabo lecturas y escrituras fuera de l\u00edmites en la memoria del kernel, conllevando a una escalada local de privilegios a root. En particular, se presenta un caso de esquina donde el off reg causa un cambio de direcci\u00f3n de enmascaramiento, que luego resulta en un aux-)alu_limit final incorrecto"
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"attackComplexity": "LOW",
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