An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-1663-1 python3.4 security update
Debian DLA Debian DLA DLA-1834-1 python2.7 security update
Debian DLA Debian DLA DLA-2280-1 python3.5 security update
Debian DLA Debian DLA DLA-2337-1 python2.7 security update
EUVD EUVD EUVD-2019-14617 An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
Ubuntu USN Ubuntu USN USN-4127-1 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-4127-2 Python vulnerabilities
Ubuntu USN Ubuntu USN USN-6891-1 Python vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 07 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2026-10-07T18:55:25.413Z

Reserved: 2019-01-04T00:00:00.000Z

Link: CVE-2019-5010

cve-icon Vulnrichment

Updated: 2024-08-04T19:40:49.196Z

cve-icon NVD

Status : Modified

Published: 2019-10-31T21:15:13.293

Modified: 2026-10-07T19:17:14.050

Link: CVE-2019-5010

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-01-15T00:00:00Z

Links: CVE-2019-5010 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses