| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 70.0 | 70.0 |
| firefox esr | < 68.2 | 68.2 |
| thunderbird | < 68.2 | 68.2 |
An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free