Bug 2019623 (CVE-2021-38505) - CVE-2021-38505 Mozilla: Windows 10 Cloud Clipboard may have recorded sensitive user data
Summary: CVE-2021-38505 Mozilla: Windows 10 Cloud Clipboard may have recorded sensitiv...
Alias: CVE-2021-38505
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: 2019235
TreeView+ depends on / blocked
Reported: 2021-11-03 00:40 UTC by Doran Moppert
Modified: 2021-11-04 01:12 UTC (History)
5 users (show)

Fixed In Version: firefox 91.3
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Clone Of:
Last Closed: 2021-11-03 02:07:48 UTC

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Description Doran Moppert 2021-11-03 00:40:59 UTC
Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios. Applications that wish to prevent copied data from being recorded in Cloud History must use specific clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have caused sensitive data to be recorded to a user's Microsoft account.

*This bug only affects Firefox for Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*

External Reference:


Comment 1 Product Security DevOps Team 2021-11-03 02:07:48 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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