Mozilla Firefox and Thunderbird Type Confusion Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 23/05/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 60.7.1< 67.0.3 | 60.7.167.0.3 |
| thunderbird | < 60.7.2 | 60.7.2 |
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.
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