The mod_proxy module in the Apache HTTP Server 2.4.x before 2.4.10, when a reverse proxy…
Priority MEDIUM 46CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The mod_proxy module in the Apache HTTP Server 2.4.x before 2.4.10, when a reverse proxy is enabled, allows remote attackers to cause a denial of service (child-process crash) via a crafted HTTP Connection header.
Why it matters now
EPSS 0.35677 98th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:* | 2.4.6 | Vulnerable | Apache |
| cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:* | 2.4.7 | Vulnerable | Apache |
| cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:* | 2.4.8 | Vulnerable | Apache |
| cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:* | 2.4.9 | Vulnerable | Apache |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | up to 10.10.2 | Vulnerable | Apple |
- cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:* Versions 2.4.6 Vulnerable ·Apache
- cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:* Versions 2.4.7 Vulnerable ·Apache
- cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:* Versions 2.4.8 Vulnerable ·Apache
- cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:* Versions 2.4.9 Vulnerable ·Apache
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.10.2 Vulnerable ·Apple
Remediation
Red Hat 2 advisories
- RHSA-2014:0921 Released 2014-07-23 · Red Hat rating Importanthttpd security update
- Red Hat Enterprise Linux Client Optional (v. 7) httpd-2.4.6-18.el7_0, httpd-devel-2.4.6-18.el7_0, httpd-manual-2.4.6-18.el7_0 +5
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd-2.4.6-18.el7_0, httpd-devel-2.4.6-18.el7_0, httpd-manual-2.4.6-18.el7_0 +5
- Red Hat Enterprise Linux Server (v. 7) httpd-2.4.6-18.el7_0, httpd-devel-2.4.6-18.el7_0, httpd-manual-2.4.6-18.el7_0 +2
- Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap-2.4.6-18.el7_0, mod_proxy_html-1:2.4.6-18.el7_0, mod_session-2.4.6-18.el7_0
- Red Hat Enterprise Linux Workstation (v. 7) httpd-2.4.6-18.el7_0, httpd-devel-2.4.6-18.el7_0, httpd-manual-2.4.6-18.el7_0 +2
- Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap-2.4.6-18.el7_0, mod_proxy_html-1:2.4.6-18.el7_0, mod_session-2.4.6-18.el7_0
- RHSA-2014:0922 Released 2014-07-23 · Red Hat rating Importanthttpd24-httpd security update
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) httpd24-httpd-2.4.6-18.el6, httpd24-httpd-devel-2.4.6-18.el6, httpd24-httpd-manual-2.4.6-18.el6 +5
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd-2.4.6-21.el7, httpd24-httpd-devel-2.4.6-21.el7, httpd24-httpd-manual-2.4.6-21.el7 +5
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.4) httpd24-httpd-2.4.6-18.el6, httpd24-httpd-devel-2.4.6-18.el6, httpd24-httpd-manual-2.4.6-18.el6 +5
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) httpd24-httpd-2.4.6-18.el6, httpd24-httpd-devel-2.4.6-18.el6, httpd24-httpd-manual-2.4.6-18.el6 +5
- Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd-2.4.6-21.el7, httpd24-httpd-devel-2.4.6-21.el7, httpd24-httpd-manual-2.4.6-21.el7 +5
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2014:0921 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.4) | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:0922 |
| Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2014:0922 |
Not affected: 7 products
- Red Hat Directory Server 8
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat JBoss Enterprise Application Platform 5
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat JBoss Enterprise Web Server 1
- Red Hat JBoss Enterprise Web Server 2
Timeline
- 2026-10-02 Threatist record created from CVE-2014-0117
- 2026-10-03 Alias added: GHSA-8qwx-34pp-wp2m
References
Advisory 1
Other 22
- https://bugzilla.redhat.com/show_bug.cgi?id=1120599
- http://advisories.mageia.org/MGASA-2014-0305.html
- https://support.apple.com/HT204659
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?r1=1609680&r2=1610674&diff_format=h
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://zerodayinitiative.com/advisories/ZDI-14-239/
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c
- 20140722 Apache HTTPd - description of the CVE-2014-0117.
- http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c?r1=1599486&r2=1610674&diff_format=h
- [httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/
- [httpd-cvs] 20210330 svn commit: r1073139 [9/13] - in /websites/staging/httpd/trunk/content: ./ security/json/
- [httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210330 svn commit: r1888194 [9/13] - /httpd/site/trunk/content/security/json/
- [httpd-cvs] 20210330 svn commit: r1073149 [9/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/
- [httpd-cvs] 20210330 svn commit: r1073146 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html
- [httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html
Sources
- CVE-2014-0117 · CVE Program
- CVE-2014-0117 · NVD
- FIRST EPSS
- GHSA-8qwx-34pp-wp2m · GitHub Advisory Database · CC BY 4.0
- CVE-2014-0117 · Red Hat security data · CC BY 4.0
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