CVE-2017-5386 Affecting firefox package, versions <0:45.7.0-2.el7_3


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.22% (61st percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-4679028
  • published26 Jul 2021
  • disclosed24 Jan 2017

Introduced: 24 Jan 2017

CVE-2017-5386  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:45.7.0-2.el7_3 or higher.
This issue was patched in RHSA-2017:0190.

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:7 relevant fixed versions and status.

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.