When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
https://www.mozilla.org/security/advisories/mfsa2022-13/
https://www.mozilla.org/security/advisories/mfsa2022-15/
Source: MITRE
Published: 2022-12-22
Updated: 2022-12-30
Type: NVD-CWE-noinfo
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM