Vulnerabilidades / CVE-2017-7821

crítica

CVE-2017-7821

A vulnerability where WebExtensions can download and attempt to open a file of some non-executable file types.

Publicada Modificada CWE 732
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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Descripción

A vulnerability where WebExtensions can download and attempt to open a file of some non-executable file types. This can be triggered without specific user interaction for the file download and open actions. This could be used to trigger known vulnerabilities in the programs that handle those document types. This vulnerability affects Firefox < 56.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
ubuntu 14.04firefox56.0+build6-0ubuntu0.14.04.1
ubuntu 16.04firefox56.0+build6-0ubuntu0.16.04.1
ubuntu 17.04firefox56.0+build6-0ubuntu0.17.04.1
ubuntu 17.10firefox56.0+build6-0ubuntu1
ubuntu 18.04firefox56.0+build6-0ubuntu1

Referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.