When drawing text onto a canvas with WebRender disabled, an out of bounds read could occur. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.0.1.
https://www.mozilla.org/security/advisories/mfsa2021-27/
https://bugzilla.mozilla.org/show_bug.cgi?id=1712047
Source: Mitre, NVD
Published: 2021-06-24
Updated: 2021-06-25
Base Score: 5.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P
Severity: Medium
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Severity: High