| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 71.0 | 71.0 |
| firefox esr | < 68.3 | 68.3 |
| thunderbird | < 68.3.0 | 68.3.0 |
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
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