CVE-2019-14859
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.
- Score
- CVSS 3.1 9.1 Critical
- Status
- Modified - secalert@redhat.com
- Published
- 2020-01-02
- Last modified
- 2024-08-05
- Weaknesses
- CWE-347
Affected products
- Python-ecdsa (Python-ecdsa Project)
- Python-ecdsa (Red Hat)
- Ceph Storage (Redhat)
- Openstack (Redhat)
- Virtualization (Redhat)
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/
