Bug 1730981 (CVE-2019-11716) - CVE-2019-11716 Mozilla: globalThis not enumerable until accessed
Summary: CVE-2019-11716 Mozilla: globalThis not enumerable until accessed
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2019-11716
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:
Blocks: 1730979
TreeView+ depends on / blocked
 
Reported: 2019-07-18 06:00 UTC by Doran Moppert
Modified: 2021-02-26 06:19 UTC (History)
3 users (show)

Fixed In Version: firefox 68
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Clone Of:
Environment:
Last Closed: 2019-07-18 21:06:46 UTC
Embargoed:

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Description Doran Moppert 2019-07-18 06:00:31 UTC 
Until explicitly accessed by script, `window.globalThis` is not enumerable and, as a result, is not visible to code such as `Object.getOwnPropertyNames(window)`. Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11716
Comment 1 Doran Moppert 2019-07-18 06:00:33 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Chris Hacking
Comment 2 Product Security DevOps Team 2019-07-18 21:06:46 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-11716
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