CVE-2019-11324

Aliases:GHSA-mh33-7rrq-662wPYSEC-2019-133
Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 18 Apr 2019, 00:00
Last modified:04 Aug 2024, 22:48

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.0 (nvd)
EPSS Score
1.01% LOW
1% probability -0.40%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Apr 2019, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 22:48
Last Modified
Vulnerability information updated

Description

The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument.

CVSS Metrics

  • v4.0•HIGH•Score: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 1.01%• Percentile: 77%

Techniques & Countermeasures

  • CWE-295•Improper Certificate Validation

    The product does not validate, or incorrectly validates, a certificate.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 18.10 | 19.04

  • PyPI•urllib3

    < 1.24.2

  • python•urllib3

    < 1.24.2

References (22)