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MFSA2021-23 Firefox: Security Vulnerabilities fixed in Firefox 89 (CVE-2021-29961)

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MFSA2021-23 Firefox: Security Vulnerabilities fixed in Firefox 89 (CVE-2021-29961)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
06/01/2021
Created
06/03/2021
Added
06/02/2021
Modified
07/02/2021

Description

When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.

Solution(s)

  • mozilla-firefox-upgrade-89_0

References

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