paritytech/libsecp256k1 · Security
libsecp256k1 contains side-channel timing attack
- GHSA ID
- GHSA-hrjm-c879-pp86
- CVE ID
- CVE-2019-25003
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
Versions of libsecp256k1 prior to 0.3.1 did not execute Scalar::check_overflow in constant time. This allows an attacker to potentially leak information via a timing attack. The flaw was corrected by modifying Scalar::check_overflow to execute in constant time.
CWEs
- CWE-208 · Observable Timing Discrepancy