vulnerability
Ubuntu: USN-4196-1 (CVE-2019-14859): python-ecdsa vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | Nov 4, 2019 | Nov 19, 2019 | Aug 18, 2025 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
Nov 4, 2019
Added
Nov 19, 2019
Modified
Aug 18, 2025
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.
Solutions
ubuntu-upgrade-python-ecdsaubuntu-upgrade-python3-ecdsa
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