What is CVE-2013-4366?

CVE-2013-4366 is a critical-severity vulnerability in Apache Httpclient, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-10-30.

How severe is CVE-2013-4366?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Apache Httpclient

CVE-2013-4366

http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.013 (80.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Httpclient — versions 4.3
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

secalert@redhat.com (x_refsource_CONFIRM, Patch, Release Notes, Issue Tracking, Vendor Advisory)
secalert@redhat.com (x_refsource_CONFIRM, Release Notes, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2013-4366?: CVE-2013-4366 is a critical-severity vulnerability in Apache Httpclient, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-10-30.
How severe is CVE-2013-4366?: Critical severity. CVSS v3 base score is 9.8 out of 10.