CVE-2022-45406

critical

Description

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

References

https://www.mozilla.org/security/advisories/mfsa2022-49/

https://www.mozilla.org/security/advisories/mfsa2022-48/

https://www.mozilla.org/security/advisories/mfsa2022-47/

https://bugzilla.mozilla.org/show_bug.cgi?id=1791975

Details

Source: Mitre, NVD

Published: 2022-12-22

Updated: 2025-04-15

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0037