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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
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
20.74%

97.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PythonPython>= 2.7.0, < 2.7.16
PythonPython>= 3.4.0, < 3.4.10
PythonPython>= 3.5.0, < 3.5.7
PythonPython>= 3.6.0, < 3.6.9
PythonPython>= 3.7.0, < 3.7.3
OpensuseLeap15.1
DebianDebian Linux9.0
RedhatEnterprise Linux8.0
RedhatEnterprise Linux Eus8.1
RedhatEnterprise Linux Eus8.2
RedhatEnterprise Linux Eus8.4
RedhatEnterprise Linux Eus8.6
RedhatEnterprise Linux Server Aus8.2
RedhatEnterprise Linux Server Aus8.4
RedhatEnterprise Linux Server Aus8.6
RedhatEnterprise Linux Server Tus8.2
RedhatEnterprise Linux Server Tus8.4
RedhatEnterprise Linux Server Tus8.6

References

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.

Are you affected by CVE-2019-5010?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST