CVE-2016-9015 — LOW (3.7) — White Hats Nepal

Vulnerability 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.

CVSS Score

3.7

LOW

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Python	Urllib3	1.17

Related Weaknesses (CWE)

CWE-295

References

http://www.openwall.com/lists/oss-security/2016/10/27/6Mailing ListMitigation
http://www.securityfocus.com/bid/93941Third Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2016/10/27/6Mailing ListMitigation
http://www.securityfocus.com/bid/93941Third Party AdvisoryVDB Entry

FAQ

What is CVE-2016-9015?

CVE-2016-9015 is a vulnerability with a CVSS score of 3.7 (LOW). 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 li...

How severe is CVE-2016-9015?

CVE-2016-9015 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-9015?

Check the references section above for vendor advisories and patch information. Affected products include: Python Urllib3.