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TI-2016-07200 Aliases CVE-2016-8743GHSA-2rfh-2gh8-v9fq

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the…

Priority MEDIUM 47Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 21 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.13252 96th percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 21 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache HTTP Server2.2.0 to 2.2.31, 2.4.1 to 2.4.23—No fix listedCNA
  • Apache HTTP Server VendorApache Affected 2.2.0 to 2.2.31, 2.4.1 to 2.4.23 Fixed in — No fix listed CNA

CPE configurations NVD · 26

CPEVersionsRoleVendor
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*2.2.0 – 2.2.31; 2.4.1 – 2.4.23VulnerableApache
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:7-mode:*:*not specified by NVDVulnerableNetApp
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
  • cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.2.0 – 2.2.31; 2.4.1 – 2.4.23 Vulnerable ·Apache
  • cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:7-mode:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
Show 16 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*1.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0Running onRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat

Remediation

Red Hat 6 advisories

  • RHSA-2017:1721 Released 2017-07-11 · Red Hat rating Moderate
    httpd security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) httpd-2.2.15-60.el6_9.4, httpd-tools-2.2.15-60.el6_9.4
    • Red Hat Enterprise Linux Desktop Optional (v. 6) httpd-devel-2.2.15-60.el6_9.4, httpd-manual-2.2.15-60.el6_9.4, mod_ssl-1:2.2.15-60.el6_9.4
    • Red Hat Enterprise Linux HPC Node (v. 6) httpd-2.2.15-60.el6_9.4, httpd-tools-2.2.15-60.el6_9.4
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) httpd-devel-2.2.15-60.el6_9.4, httpd-manual-2.2.15-60.el6_9.4, mod_ssl-1:2.2.15-60.el6_9.4
    • Red Hat Enterprise Linux Server (v. 6) httpd-2.2.15-60.el6_9.4, httpd-devel-2.2.15-60.el6_9.4, httpd-devel-2.2.15-60.el6_9.4.ppc +3
    • Red Hat Enterprise Linux Workstation (v. 6) httpd-2.2.15-60.el6_9.4, httpd-devel-2.2.15-60.el6_9.4, httpd-manual-2.2.15-60.el6_9.4 +2
  • RHSA-2017:1413 Released 2017-06-07 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1 for RHEL 7
    • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd-2.4.23-120.jbcs.el7, jbcs-httpd24-httpd-devel-2.4.23-120.jbcs.el7, jbcs-httpd24-httpd-libs-2.4.23-120.jbcs.el7 +13
  • RHSA-2017:1414 Released 2017-06-07 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1 for RHEL 6
    • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-httpd-2.4.23-120.jbcs.el6, jbcs-httpd24-httpd-devel-2.4.23-120.jbcs.el6, jbcs-httpd24-httpd-libs-2.4.23-120.jbcs.el6 +13
Show 3 more Red Hat advisories
  • RHSA-2017:1415 Released 2017-06-07 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1
    • Red Hat JBoss Core Services
  • RHSA-2017:1161 Released 2017-04-26 · Red Hat rating Moderate
    httpd24-httpd security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-httpd-2.4.25-9.el6, httpd24-httpd-devel-2.4.25-9.el6, httpd24-httpd-manual-2.4.25-9.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd-2.4.25-9.el7, httpd24-httpd-devel-2.4.25-9.el7, httpd24-httpd-manual-2.4.25-9.el7 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) httpd24-httpd-2.4.25-9.el6, httpd24-httpd-devel-2.4.25-9.el6, httpd24-httpd-manual-2.4.25-9.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) httpd24-httpd-2.4.25-9.el7, httpd24-httpd-devel-2.4.25-9.el7, httpd24-httpd-manual-2.4.25-9.el7 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-httpd-2.4.25-9.el6, httpd24-httpd-devel-2.4.25-9.el6, httpd24-httpd-manual-2.4.25-9.el6 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd-2.4.25-9.el7, httpd24-httpd-devel-2.4.25-9.el7, httpd24-httpd-manual-2.4.25-9.el7 +5
  • RHSA-2017:0906 Released 2017-04-12 · Red Hat rating Moderate
    httpd security and bug fix update
    • Red Hat Enterprise Linux Client Optional (v. 7) httpd-2.4.6-45.el7_3.4, httpd-devel-2.4.6-45.el7_3.4, httpd-manual-2.4.6-45.el7_3.4 +5
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd-2.4.6-45.el7_3.4, httpd-devel-2.4.6-45.el7_3.4, httpd-manual-2.4.6-45.el7_3.4 +5
    • Red Hat Enterprise Linux Server (v. 7) httpd-2.4.6-45.el7_3.4, httpd-devel-2.4.6-45.el7_3.4, httpd-manual-2.4.6-45.el7_3.4 +2
    • Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap-2.4.6-45.el7_3.4, mod_proxy_html-1:2.4.6-45.el7_3.4, mod_session-2.4.6-45.el7_3.4
    • Red Hat Enterprise Linux Workstation (v. 7) httpd-2.4.6-45.el7_3.4, httpd-devel-2.4.6-45.el7_3.4, httpd-manual-2.4.6-45.el7_3.4 +2
    • Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap-2.4.6-45.el7_3.4, mod_proxy_html-1:2.4.6-45.el7_3.4, mod_session-2.4.6-45.el7_3.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Apache HTTP Server — DSA-3796

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2016-00660 Cryptographic flaw in Apache HTTP ServerPriority MEDIUM 64
    • TI-2016-01972 Improper input validation in Apache HTTP ServerPriority MEDIUM 52
  • Advisory ·

    Apache HTTP Server — RHSA-2017:0906

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2016-00660 Cryptographic flaw in Apache HTTP ServerPriority MEDIUM 64
    • TI-2016-01972 Improper input validation in Apache HTTP ServerPriority MEDIUM 52

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 1AffectedNo fix planned: Will not fix
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:0906
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:0906
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:0906
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:0906
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:1721
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:0906
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:0906
Red Hat JBoss Core ServicesFixed RHSA-2017:1415
Red Hat JBoss Core Services on RHEL 6 ServerFixed RHSA-2017:1414
Red Hat JBoss Core Services on RHEL 7 ServerFixed RHSA-2017:1413
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:1161
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1161
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2017:1161
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2017:1161
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:1161
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1161
Not affected: 3 products
  • Red Hat Directory Server 8
  • Red Hat JBoss Enterprise Application Platform 5
  • Red Hat JBoss Web Server 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-8743
  2. 2026-10-03 Alias added: GHSA-2rfh-2gh8-v9fq

References

Other 24

  • TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
  • TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
See all 349 →

Sources