high
7.5
CWE
20
Advisory Published
CVE Published
Updated

CVE-2016-8743: Input Validation

First published: Tue Dec 20 2016(Updated: )

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through mod_proxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution.

Credit: CVE-2016-0736 CVE-2016-2161 CVE-2016-5387 CVE-2016-8740 CVE-2016-8743 CVE-2016-0736 CVE-2016-2161 CVE-2016-5387 CVE-2016-8740 CVE-2016-8743 CVE-2017-3167 CVE-2017-3169 CVE-2017-7659 CVE-2017-7668 CVE-2017-7679 CVE-2017-9788 CVE-2017-9789 security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jbcs-httpd24-httpd<0:2.4.23-120.jbcs.el6
0:2.4.23-120.jbcs.el6
redhat/jbcs-httpd24-openssl<1:1.0.2h-13.jbcs.el6
1:1.0.2h-13.jbcs.el6
redhat/jbcs-httpd24-httpd<0:2.4.23-120.jbcs.el7
0:2.4.23-120.jbcs.el7
redhat/jbcs-httpd24-openssl<1:1.0.2h-13.jbcs.el7
1:1.0.2h-13.jbcs.el7
redhat/httpd<0:2.2.15-60.el6_9.4
0:2.2.15-60.el6_9.4
redhat/httpd<0:2.4.6-45.el7_3.4
0:2.4.6-45.el7_3.4
redhat/httpd24-httpd<0:2.4.25-9.el6
0:2.4.25-9.el6
redhat/httpd24-httpd<0:2.4.25-9.el7
0:2.4.25-9.el7
Apple macOS High Sierra<10.13
10.13
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
redhat/httpd<2.4.25
2.4.25
Apache HTTP server>=2.2.0<=2.2.31
Apache HTTP server>=2.4.1<=2.4.23
NetApp Clustered Data ONTAP
Netapp Oncommand Unified Manager 7-mode
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Redhat Enterprise Linux Desktop=6.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Eus=7.3
Redhat Enterprise Linux Eus=7.4
Redhat Enterprise Linux Eus=7.5
Redhat Enterprise Linux Eus=7.6
Redhat Enterprise Linux Eus=7.7
Redhat Enterprise Linux Server=6.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.3
Redhat Enterprise Linux Server Aus=7.4
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Aus=7.7
Redhat Enterprise Linux Server Tus=7.3
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Server Tus=7.7
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
Redhat Jboss Core Services=1.0
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=7.0

Remedy

https://security.gentoo.org/glsa/201701-36

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2016-8743?

    CVE-2016-8743 is a vulnerability in Apache HTTP Server versions prior to 2.2.32 and 2.4.25.

  • How severe is CVE-2016-8743?

    CVE-2016-8743 has a severity rating of 7.5 (high).

  • What is the affected software of CVE-2016-8743?

    The affected software of CVE-2016-8743 includes Apache HTTP Server versions prior to 2.2.32 and 2.4.25.

  • How do I fix CVE-2016-8743?

    To fix CVE-2016-8743, you need to update your Apache HTTP Server to version 2.4.27 or later.

  • Where can I find more information about CVE-2016-8743?

    You can find more information about CVE-2016-8743 on the official Apache HTTP Server website and the Red Hat Bugzilla website.

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