Описание
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| python-ecdsa | fixed | 0.13.3-1 | package |
Примечания
https://github.com/warner/python-ecdsa/issues/114
Upstream patches:
https://github.com/warner/python-ecdsa/pull/115
https://github.com/warner/python-ecdsa/pull/124
Fix for CVE-2019-14853 fixes as well CVE-2019-14859.
Связанные уязвимости
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
Improper Verification of Cryptographic Signature in Pure-Python ECDSA
Уязвимость криптографической библиотеки Python ECDSA, связанная с некорректной проверкой криптографической подписи, позволяющая нарушителю оказать воздействие на конфиденциальность и целостность защищаемой информации