Rapid7 Vulnerability & Exploit Database

MFSA2021-16 Firefox: Security Vulnerabilities fixed in Firefox 88 (CVE-2021-23997)

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MFSA2021-16 Firefox: Security Vulnerabilities fixed in Firefox 88 (CVE-2021-23997)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
04/19/2021
Created
04/20/2021
Added
04/20/2021
Modified
07/05/2021

Description

Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

Solution(s)

  • mozilla-firefox-upgrade-88_0

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