Inclusion of Functionality from Untrusted Control Sphere Affecting firefox package, versions <0:60.8.0-1.el8_0


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
68.96% (99th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3465243
  • published26 Jul 2021
  • disclosed10 Jul 2019

Introduced: 10 Jul 2019

CVE-2019-11730  (opens in a new tab)
CWE-829  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:60.8.0-1.el8_0 or higher.
This issue was patched in RHSA-2019:1764.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVSS Scores

version 3.1