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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-07-30T16:26:56

Updated: 2024-08-05T00:12:43.277Z

Reserved: 2019-07-27T00:00:00

Link: CVE-2019-14318

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-07-30T17:15:12.687

Modified: 2019-08-20T18:15:11.577

Link: CVE-2019-14318

cve-icon Redhat

No data.