Mozilla Firefox And Thunderbird Type Confusion Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 03/11/2021. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 68.4.1< 72.0.1 | 68.4.172.0.1 |
| thunderbird | < 68.4.1 | 68.4.1 |
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
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