CVE-2019-14853

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 v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853	Issue Tracking Third Party Advisory
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3	Release Notes
https://seclists.org/bugtraq/2019/Dec/33
https://www.debian.org/security/2019/dsa-4588

Configurations

Configuration 1 (hide)

cpe:2.3:a:python-ecdsa_project:python-ecdsa:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-11-26 13:15

Updated : 2019-12-17 23:15

NVD link : CVE-2019-14853

Mitre link : CVE-2019-14853

CVE.ORG link : CVE-2019-14853

JSON object : View

Products Affected

python-ecdsa_project

python-ecdsa

CWE

CWE-755

Improper Handling of Exceptional Conditions

CWE-391

Unchecked Error Condition

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