Bug 1829344 (CVE-2020-6810)

Summary: CVE-2020-6810 Mozilla: Focusing a popup while in fullscreen could have obscured the fullscreen notification
Product: [Other] Security Response Reporter: msiddiqu
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: firefox 74 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2020-04-29 16:32:07 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1829324    

Description msiddiqu 2020-04-29 12:18:20 UTC 
After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6810
Comment 1 msiddiqu 2020-04-29 12:18:25 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Avi Drissman (Chrome security team)
Comment 2 Product Security DevOps Team 2020-04-29 16:32:07 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-2020-6810