CVE-2019-11324

high

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.

References

Advisories
More

https://usn.ubuntu.com/3990-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/

https://github.com/urllib3/urllib3/compare/a6ec68a...1efadf4

https://access.redhat.com/errata/RHSA-2019:3590

https://access.redhat.com/errata/RHSA-2019:3335

http://www.openwall.com/lists/oss-security/2019/04/19/1

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html

https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html

https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html

Details

Source: Mitre, NVD

Published: 2019-04-18

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.01379