CVE-2019-14859
7.4
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | python-ecdsa | all python-ecdsa versions before 0.13.3 | affected |
Weaknesses
- CWE-347: CWE-347
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://pypi.org/project/ecdsa/0.13.3/
- https://github.com/warner/python-ecdsa/issues/114
References
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859
- https://pypi.org/project/ecdsa/0.13.3/
- https://github.com/warner/python-ecdsa/issues/114
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