An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
Source: MITRE
Published: 2019-11-26
Updated: 2019-12-17
Type: CWE-755
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH