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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1oMzMtN3JycS02NjJ3

Improper Certificate Validation in urllib3

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.

Permalink: https://github.com/advisories/GHSA-mh33-7rrq-662w
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1oMzMtN3JycS02NjJ3
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 5 years ago
Updated: 6 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Identifiers: GHSA-mh33-7rrq-662w, CVE-2019-11324
References:

• https://nvd.nist.gov/vuln/detail/CVE-2019-11324
• https://github.com/urllib3/urllib3/compare/a6ec68a...1efadf4
• https://pypi.org/project/urllib3/1.24.2/
• https://access.redhat.com/errata/RHSA-2019:3335
• https://access.redhat.com/errata/RHSA-2019:3590
• https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
• https://lists.fedoraproject.org/archives/list/[email protected]/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/
• https://usn.ubuntu.com/3990-1/
• 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/2019/04/19/1
• https://github.com/urllib3/urllib3/commit/1efadf43dc63317cd9eaa3e0fdb9e05ab07254b1
• https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
• https://github.com/advisories/GHSA-mh33-7rrq-662w

Repository: https://github.com/urllib3/urllib3
Blast Radius: 42.2

Affected Packages