| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 60.2.0< 62.0 | 60.2.062.0 |
| thunderbird | < 60.2.1 | 60.2.1 |
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
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