Bug 1642186 – CVE-2018-12396 Mozilla: WebExtension content scripts can execute in disallowed contexts

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Bug 1642186 - (CVE-2018-12396) CVE-2018-12396 Mozilla: WebExtension content scripts can execute in disallowed contexts

Summary:	CVE-2018-12396 Mozilla: WebExtension content scripts can execute in disallowe...

Status:	NEW

Aliases:	CVE-2018-12396

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20181023,repor...
Keywords:	Security

Depends On:	1640852 1640854
Blocks:	1640850
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Reported:	2018-10-23 18:08 EDT by Doran Moppert
Modified:	2018-10-24 18:10 EDT (History)
CC List:	4 users (show)

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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3005	None	None	None	2018-10-24 18:09 EDT
Red Hat Product Errata	RHSA-2018:3006	None	None	None	2018-10-24 18:10 EDT

Groups: None (edit)

Description Doran Moppert 2018-10-23 18:08:07 EDT

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12396

Comment 1 Doran Moppert 2018-10-23 18:08:17 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: Rob Wu

Comment 2 errata-xmlrpc 2018-10-24 18:09:43 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3005 https://access.redhat.com/errata/RHSA-2018:3005

Comment 3 errata-xmlrpc 2018-10-24 18:10:06 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:3006 https://access.redhat.com/errata/RHSA-2018:3006

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