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...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-12396
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1640852 1640854 1649195
Blocks: 1640850
TreeView+ depends on / blocked
 
Reported: 2018-10-23 22:08 UTC by Doran Moppert
Modified: 2021-02-16 22:52 UTC (History)
4 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2018-11-13 06:16:14 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3005 0 None None None 2018-10-24 22:09:51 UTC
Red Hat Product Errata RHSA-2018:3006 0 None None None 2018-10-24 22:10:11 UTC

Description Doran Moppert 2018-10-23 22:08:07 UTC 
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 22:08:17 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Rob Wu
Comment 2 errata-xmlrpc 2018-10-24 22:09:43 UTC 
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 22:10:06 UTC 
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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