CVE-2019-5010
HIGHCVSS 7.5/10EPSS 20.74%
Last modified
CVE-2019-5010 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 20.74% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Python | >= 2.7.0, < 2.7.16 |
| Python | Python | >= 3.4.0, < 3.4.10 |
| Python | Python | >= 3.5.0, < 3.5.7 |
| Python | Python | >= 3.6.0, < 3.6.9 |
| Python | Python | >= 3.7.0, < 3.7.3 |
| Opensuse | Leap | 15.1 |
| Debian | Debian Linux | 9.0 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux Eus | 8.1 |
| Redhat | Enterprise Linux Eus | 8.2 |
| Redhat | Enterprise Linux Eus | 8.4 |
| Redhat | Enterprise Linux Eus | 8.6 |
| Redhat | Enterprise Linux Server Aus | 8.2 |
| Redhat | Enterprise Linux Server Aus | 8.4 |
| Redhat | Enterprise Linux Server Aus | 8.6 |
| Redhat | Enterprise Linux Server Tus | 8.2 |
| Redhat | Enterprise Linux Server Tus | 8.4 |
| Redhat | Enterprise Linux Server Tus | 8.6 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3520Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3725Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-26Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0758Exploit, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3520Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3725Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-26Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0758Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-5010?
CVE-2019-5010 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 20.74% probability of exploitation in the next 30 days.
How do I fix CVE-2019-5010?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-5010?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST