python-ecdsa is vulnerable to denial of service. The package raises unexpected exceptions when a DER signature is malformed, allowing a remote attacker to crash the application by submitting malicious DER signature.
bugzilla.redhat.com/show_bug.cgi?id=1758704
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
github.com/warner/python-ecdsa/issues/114
github.com/warner/python-ecdsa/pull/115
github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
seclists.org/bugtraq/2019/Dec/33
www.debian.org/security/2019/dsa-4588