Описание
Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.
Ссылки
- ExploitThird Party Advisory
- PatchThird Party Advisory
- Third Party Advisory
- ExploitThird Party Advisory
- PatchThird Party Advisory
- Third Party Advisory
Уязвимые конфигурации
EPSS
5.9 Medium
CVSS3
4.3 Medium
CVSS2
Дефекты
Связанные уязвимости
Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.
Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA sig ...
Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.
EPSS
5.9 Medium
CVSS3
4.3 Medium
CVSS2