Description
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Published: 2021-08-17
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-16446 After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91.
Ubuntu USN Ubuntu USN USN-5037-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5248-1 Thunderbird vulnerabilities
History

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Linux Linux Kernel
Mozilla Firefox Thunderbird
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-03T22:24:59.105Z

Reserved: 2021-04-01T00:00:00.000Z

Link: CVE-2021-29987

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-08-17T20:15:07.973

Modified: 2024-11-21T06:02:07.223

Link: CVE-2021-29987

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses