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.
Published 2019-11-26 13:15:11
Updated 2019-12-17 23:15:15
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2019-14853

0.20%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-14853

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
3.7
LOW CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
2.2
1.4
Red Hat, Inc.
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

CWE ids for CVE-2019-14853

  • [PLANNED FOR DEPRECATION. SEE MAINTENANCE NOTES AND CONSIDER CWE-252, CWE-248, OR CWE-1069.] Ignoring exceptions and other error conditions may allow an attacker to induce unexpected behavior unnoticed.
    Assigned by: secalert@redhat.com (Secondary)
  • The product does not handle or incorrectly handles an exceptional condition.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-14853

Products affected by CVE-2019-14853

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