GoogleOSV:GHSA-MH33-7RRQ-662WImproper Certificate Validation in urllib3
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.5 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
74.3%
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
lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html
lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html
www.openwall.com/lists/oss-security/2019/04/19/1
access.redhat.com/errata/RHSA-2019:3335
access.redhat.com/errata/RHSA-2019:3590
github.com/urllib3/urllib3
github.com/urllib3/urllib3/commit/1efadf43dc63317cd9eaa3e0fdb9e05ab07254b1
github.com/urllib3/urllib3/compare/a6ec68a...1efadf4
lists.debian.org/debian-lts-announce/2021/06/msg00015.html
lists.debian.org/debian-lts-announce/2023/10/msg00012.html
lists.fedoraproject.org/archives/list/[email protected]/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72
lists.fedoraproject.org/archives/list/[email protected]/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2
nvd.nist.gov/vuln/detail/CVE-2019-11324
pypi.org/project/urllib3/1.24.2
usn.ubuntu.com/3990-1
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.5 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
74.3%