CVE-2016-9015

Description

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.

Category

3.7
CVSS
Severity: Low
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.55%
Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/93941 vdb entry third party advisory
http://www.openwall.com/lists/oss-security/2016/10/27/6 mailing list mitigation

Frequently Asked Questions

What is the severity of CVE-2016-9015?
CVE-2016-9015 has been scored as a low severity vulnerability.
How to fix CVE-2016-9015?
To fix CVE-2016-9015, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9015 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-9015 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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