Home/CVE/The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is differ
CVE

CVE-2019-11324

The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is differ

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.

HIGH · CVSS 7.5 EPSS 0.01015
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

2
python urllib3< 1.24.2
canonical ubuntu linuxall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI urllib3 HIGH fixed in 1.24.2
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Apr 2019 · 09:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

24
msrcCVE-2019-11324
suse-csafopenSUSE-SU-2024:14144-1
suse-csafopenSUSE-SU-2024:14055-1
suse-csafopenSUSE-SU-2024:11234-1
suse-csafopenSUSE-SU-2024:11255-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html
http://www.openwall.com/lists/oss-security/2019/04/19/1Mailing ListThird Party Advisory
https://github.com/urllib3/urllib3/compare/a6ec68a...1efadf4PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
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