Home/CVE/An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatu
CVE

CVE-2019-14853

An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatu

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.

HIGH · CVSS 7.5 EPSS 0.00076
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-391Unchecked Error Condition
CWE-755Improper Handling of Exceptional Conditions
▤

Affected Products & Versions

1
python-ecdsa project python-ecdsa< 0.13.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI ecdsa MODERATE fixed in 0.13.3
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Nov 2019 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2024:11229-1
suse-csafopenSUSE-SU-2024:13862-1
rhsaRHSA-2021:4702Moderate
suse-csafSUSE-SU-2019:2891-2
suse-csafSUSE-SU-2019:3024-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853Issue TrackingThird Party Advisory
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3Release Notes
https://seclists.org/bugtraq/2019/Dec/33
https://www.debian.org/security/2019/dsa-4588
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