Improper Certificate Validation Affecting python-urllib3 package, versions <1.25.6-4
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-PYTHONURLLIB3-344209
- published18 Apr 2019
- disclosed18 Apr 2019
Introduced: 18 Apr 2019
CVE-2019-11324 (opens in a new tab)How to fix?
Upgrade Debian:unstable python-urllib3 to version 1.25.6-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-urllib3 package and not the python-urllib3 package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-11324
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/
- https://github.com/urllib3/urllib3/compare/a6ec68a...1efadf4
- https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
- 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://access.redhat.com/errata/RHSA-2019:3335
- https://access.redhat.com/errata/RHSA-2019:3590
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-11324
- https://usn.ubuntu.com/3990-1/
- https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/