UpHeron
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Servers and applications

CVE-2016-4975

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).

Severity
Medium 6.1
Published
14 Aug 2018
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 2.4.23
  • Version 2.4.20
  • Version 2.4.18
  • Version 2.4.17
All 41 release lines
  • Version 2.2.0
  • Version 2.2.2
  • Version 2.2.3
  • Version 2.2.4
  • Version 2.2.6
  • Version 2.2.8
  • Version 2.2.9
  • Version 2.2.10
  • Version 2.2.11
  • Version 2.2.12
  • Version 2.2.13
  • Version 2.2.14
  • Version 2.2.15
  • Version 2.2.16
  • Version 2.2.17
  • Version 2.2.18
  • Version 2.2.19
  • Version 2.2.20
  • Version 2.2.21
  • Version 2.2.22
  • Version 2.2.23
  • Version 2.2.24
  • Version 2.2.25
  • Version 2.2.26
  • Version 2.2.27
  • Version 2.2.29
  • Version 2.2.31
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.4
  • Version 2.4.6
  • Version 2.4.7
  • Version 2.4.9
  • Version 2.4.10
  • Version 2.4.12
  • Version 2.4.16
  • Version 2.4.17
  • Version 2.4.18
  • Version 2.4.20
  • Version 2.4.23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-4975
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-4975