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CVE-2019-20907

Estado: ModificadaAlta (7.5)—

In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

CVSS

Probabilidad de explotación (EPSS)

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 (8)

Canonical — Ubuntu LinuxDebian — Debian LinuxFedoraproject — FedoraNetapp — Active IQ Unified ManagerNetapp — Cloud Volumes Ontap MediatorOpensuse — LeapOracle — ZFS Storage Appliance KITPython — Python

CWE

Referencias

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      "value": "En la biblioteca Lib/tarfile.py en Python versiones hasta 3.8.3, un atacante puede diseñar un archivo TAR conllevando a un bucle infinito cuando se abrió mediante tarfile.open, porque la función _proc_pax carece de comprobación  de encabezado"
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