CVE-2019-14859
- Source
- https://cve.org/CVERecord?id=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
- 2020-01-02T15:15:11.960Z
- Modified
- 2026-02-14T07:23:40.611731Z
- 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
-
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://github.com/warner/python-ecdsa/issues/114
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
- https://pypi.org/project/ecdsa/0.13.3/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://github.com/warner/python-ecdsa/issues/114
Affected packages
Git / github.com/tlsfuzzer/python-ecdsa
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tlsfuzzer/python-ecdsa
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed