🛡️ CVE-2022-24884
🔴 CVSS 10.0 — Critical ✅ No Known Exploit CWE-347 NVD
10.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()` does not check whether the signature values `r` and `s` are non-zero. A signature consisting only of zeroes is always considered valid, making it trivial to forge signatures. Requiring multiple signatures from different public keys does not mitigate the issue: `ecdsa_verify_list_legacy()` will accept an arbitrary number of such forged signatures. Both the `ecdsautil verify` CLI command and the libecdsautil library are affected. The issue has been fixed in ecdsautils 0.4.1. All older versions of ecdsautils (including versions before the split into a library and a CLI utility) are vulnerable.

Details

Severity CRITICAL
CVSS Score 10.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE CWE-347
Public Exploit ✅ No
Source NVD
Published 2022-05-06
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
debian-linux — —
ecdsautils — 0.4.1
fedora — —

References

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