PYSEC-2017-98

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/urllib3/PYSEC-2017-98.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2017-98
Aliases
Published
2017-01-11T16:59:00Z
Modified
2023-11-01T04:47:13.684798Z
Summary
[none]
Details

Versions 1.17 and 1.18 of the Python urllib3 library suffer from a vulnerability that can cause them, in certain configurations, to not correctly validate TLS certificates. This places users of the library with those configurations at risk of man-in-the-middle and information leakage attacks. This vulnerability affects users using versions 1.17 and 1.18 of the urllib3 library, who are using the optional PyOpenSSL support for TLS instead of the regular standard library TLS backend, and who are using OpenSSL 1.1.0 via PyOpenSSL. This is an extremely uncommon configuration, so the security impact of this vulnerability is low.

References

Affected packages

PyPI / urllib3

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.17
Fixed
1.18.1

Affected versions

1.*

1.17
1.18