CVE-2019-25003
HIGH7.5EPSS 0.21%Flaw in Scalar::check_overflow allows side-channel timing attack
Published: 8/25/2021Modified: 11/8/2023
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.
Affected packages (2)
- crates.io/libsecp256k1from 0, < 0.3.1
- crates.io/libsecp256k1>= 0.0.0-0, < 0.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |