CVE-2019-14859
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-14859
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-14859.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-14859
- Aliases
- Downstream
- Related
- Published
- 2020-01-02T15:15:11Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
- References