CVEvulnerability
CVE-2019-14859
9.1 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-01-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 3.0 ([email protected])
- 7.4 HIGH — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-347
Description
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.
Affected configurations
• python-ecdsa project python-ecdsa (< 0.13.3)
• redhat ceph storage 2.0
• redhat ceph storage 3.0
• redhat openstack 10
• redhat openstack 13
• redhat openstack 14
• redhat openstack 15
• redhat virtualization 4.0
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/warner/python-ecdsa/issues/114 Exploit, Third Party Advisory
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 Release Notes, Third Party Advisory
- https://pypi.org/project/ecdsa/0.13.3/ Release Notes, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/warner/python-ecdsa/issues/114 Exploit, Third Party Advisory
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 Release Notes, Third Party Advisory
- https://pypi.org/project/ecdsa/0.13.3/ Release Notes, Third Party Advisory