Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by introducing rate-limiting to these API calls. This vulnerability affects Firefox < 83.
https://www.mozilla.org/security/advisories/mfsa2020-50/
https://bugzilla.mozilla.org/show_bug.cgi?id=1314912
Source: Mitre, NVD
Published: 2020-12-09
Updated: 2020-12-10
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Severity: Medium
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L