HTTP Response Splitting Affecting httpd package, versions <0:2.4.6-45.el7_3.4

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Proof of concept

0.4% (75^th percentile)

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Snyk IDSNYK-RHEL7-HTTPD-4709755
published26 Jul 2021
disclosed14 Aug 2018

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Introduced: 14 Aug 2018

CVE-2016-4975 (opens in a new tab) CWE-113 (opens in a new tab)

How to fix?

Upgrade RHEL:7 httpd to version 0:2.4.6-45.el7_3.4 or higher.
This issue was patched in RHSA-2017:0906.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd package and not the httpd package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).