CVE-2021-43572
- Source
- https://cve.org/CVERecord?id=CVE-2021-43572
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43572.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43572
- Aliases
- Published
- 2021-11-09T22:15:07Z
- Modified
- 2026-10-20T10:55:02Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The verify function in the Stark Bank Python ECDSA library (aka starkbank-escada or ecdsa-python) before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
- References
Affected packages
Git / github.com/starkbank/ecdsa-python
Affected ranges
- Type
- GIT
- Repo
- https://github.com/starkbank/ecdsa-python
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:starkbank:ecdsa-python:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "2.0.1" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "d136170666e9510eb63c2572551805807bd4c17f" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v2.0.1", "range": [ { "fixed": "cb6d807a697d952916a0c46ce05ddd4d78718ca7" } ], "source": "REFERENCES_TAG" } ] }