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Status published
Critical
CVE-2021-38195
An issue was discovered in the libsecp256k1 crate before 0.5.0...
Vulnerability Description
An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. It can verify an invalid signature because it allows the R or S parameter to be larger than the curve order, aka an overflow.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
More from parity
View All →CVE-2019-25003
An issue was discovered in the libsecp256k1 crate before 0.3.1...
High
7.5
CVE-2019-20399
A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs...
Medium
5.9
CVE-2017-18016
Parity Browser 1.6.10 and earlier allows remote attackers to bypass...
Medium
5.3
Affected Vendor
parity
View all reports →Affected Software
libsecp256k1
Vulnerable Versions:
0
Timeline
Official Publish:
August 8th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.