| Package | Affected versions | Patched versions |
|---|---|---|
| firefox esr | < 68.12 | 68.12 |
| thunderbird | < 68.12 | 68.12 |
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.
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