[Python-modules-team] Bug#927412: python-urllib3: CVE-2019-11324: adds system certificates to ssl_context

Salvatore Bonaccorso carnil at debian.org
Fri Apr 19 09:24:54 BST 2019

Source: python-urllib3
Version: 1.24.1-1
Severity: important
Tags: security upstream


The following vulnerability was published for python-urllib3,
additionally to the one already reported in the BTS earlier. It was
posted at [1].

| 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.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2019-11324
[1] https://www.openwall.com/lists/oss-security/2019/04/17/3

Please adjust the affected versions in the BTS as needed.


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