GitHub Advisoryadvisory · crates.io

GHSA-g4vj-x7v9-h82m Overflow in libsecp256k1

CRITICAL Published 2021-08-25 Modified 2021-08-18 Official page ↗
Aliases
CVE-2021-38195
Ecosystem
crates.io
Packages
libsecp256k1
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-190, CWE-347
Reviewed
2021-08-18

Affected packages

• crates.io libsecp256k1: < 0.5.0 → fixed in 0.5.0

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.

Related

Alias · CVE (1)

  • CVE-2021-38195 An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. vulnerability

Weakness · CWE (2)

  • CWE-190 Integer Overflow or Wraparound weakness
  • CWE-347 Improper Verification of Cryptographic Signature weakness

References