By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer, leading to a potential exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
2022-12-22T20:15:23.430
2025-04-15T20:15:35.830
Modified
CVSSv3.1: 6.5 (MEDIUM)
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | mozilla | firefox | < 99.0 | Yes |
Application | mozilla | firefox_esr | < 91.8 | Yes |
Application | mozilla | thunderbird | < 91.8 | Yes |