UpHeron
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Servers and applications

CVE-2019-5010

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.

Severity
High 7.5
Published
31 Oct 2019
Last changed
7 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
2.7.16, 3.4.10, 3.5.7, 3.6.9, 3.7.3
Sources
NVD

Affected software

SoftwareAffected versions
PythonServers and applications · cpe:a:python:python
  • From 2.7.0 before 2.7.16
  • From 3.4.0 before 3.4.10
  • From 3.5.0 before 3.5.7
  • From 3.6.0 before 3.6.9
  • From 3.7.0 before 3.7.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-5010
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-5010