CVE-2019-14853 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853 https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 https://seclists.org/bugtraq/2019/Dec/33 https://www.debian.org/security/2019/dsa-4588

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5