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Fencer Intel
medium 5.0

CVE-2014-3581 json

The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows r…

published 2014-10-10 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-3557

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.5%
EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty HTTP Content-Type header.

Patch / fix

  • oracle enterprise_manager_ops_center 12.1.4
  • apache2 Debian 14, Debian 13, Debian 12 2.4.10-3

debian advisories DEBIAN-CVE-2014-3581

  • apache2 Ubuntu 14.04 LTS 2.4.7-1ubuntu4.4

ubuntu advisories UBUNTU-CVE-2014-3581

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • httpd24 jboss enterprise web server 3.0 2.4.6-59.ep7.el7
  • mod_bmx jboss enterprise web server 3.0 0.9.5-7.GA.ep7.el7
  • tomcat7 jboss enterprise web server 3.0 7.0.59-42_patch_01.ep7.el7
  • tomcat8 jboss enterprise web server 3.0 8.0.18-52_patch_01.ep7.el7
  • mod_ssl24 jboss enterprise web server 3.0 1:2.4.6-59.ep7.el7
  • mod_ldap24 jboss enterprise web server 3.0 2.4.6-59.ep7.el7
  • tomcat7-lib jboss enterprise web server 3.0 7.0.59-42_patch_01.ep7.el7
  • tomcat8-lib jboss enterprise web server 3.0 8.0.18-52_patch_01.ep7.el7

red hat advisories RHSA-2015:2660RHSA-2015:2659RHSA-2015:0325RHSA-2014:1972

  • apache2 SLES for SAP 12, SLES 12, SLE Software Development Kit 12 2.4.10-12.1

suse advisories SUSE-SU-2015:0974-1

  • apache2 openSUSE Tumbleweed 2.4.23-4.1

opensuse advisories openSUSE-SU-2024:10268-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-3581 updated cvss 2.6

httpd: NULL pointer dereference in mod_cache if Content-Type has empty value

  • Red Hat Enterprise Linux Client Optional (v. 7) httpd 2.4.6-31.el7, mod_ssl 2.4.6-31.el7, mod_ldap 2.4.6-31.el7, httpd-tools 2.4.6-31.el7, mod_session 2.4.6-31.el7, httpd-manual 2.4.6-31.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd 2.4.6-31.el7, mod_ssl 2.4.6-31.el7, mod_ldap 2.4.6-31.el7, httpd-tools 2.4.6-31.el7, mod_session 2.4.6-31.el7, httpd-manual 2.4.6-31.el7, +1 more Red Hat Enterprise Linux Server (v. 7) httpd 2.4.6-31.el7, mod_ssl 2.4.6-31.el7, httpd-tools 2.4.6-31.el7, httpd-manual 2.4.6-31.el7 Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap 2.4.6-31.el7, mod_session 2.4.6-31.el7, mod_proxy_html 2.4.6-31.el7 Red Hat Enterprise Linux Workstation (v. 7) httpd 2.4.6-31.el7, mod_ssl 2.4.6-31.el7, httpd-tools 2.4.6-31.el7, httpd-manual 2.4.6-31.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap 2.4.6-31.el7, mod_session 2.4.6-31.el7, mod_proxy_html 2.4.6-31.el7
    fixed: vendor fix RHSA-2015:0325
  • Red Hat JBoss Web Server 3.0
    fixed: vendor fix RHSA-2015:2661
  • Red Hat JBoss Web Server 3.0 for RHEL 6 httpd24 2.4.6-59.ep7.el6, mod_bmx 0.9.5-7.GA.ep7.el6, mod_ssl24 2.4.6-59.ep7.el6, mod_ldap24 2.4.6-59.ep7.el6, httpd24-tools 2.4.6-59.ep7.el6, mod_session24 2.4.6-59.ep7.el6, +26 more
    fixed: vendor fix RHSA-2015:2659
  • Red Hat JBoss Web Server 3.0 for RHEL 7 httpd24 2.4.6-59.ep7.el7, mod_bmx 0.9.5-7.GA.ep7.el7, mod_ssl24 2.4.6-59.ep7.el7, mod_ldap24 2.4.6-59.ep7.el7, httpd24-tools 2.4.6-59.ep7.el7, mod_session24 2.4.6-59.ep7.el7, +26 more
    fixed: vendor fix RHSA-2015:2660
  • Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 6) httpd24-httpd 2.4.6-22.el6, httpd24-mod_ssl 2.4.6-22.el6, httpd24-mod_ldap 2.4.6-22.el6, httpd24-httpd-tools 2.4.6-22.el6, httpd24-mod_session 2.4.6-22.el6, httpd24-httpd-manual 2.4.6-22.el6, +1 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd 2.4.6-25.el7, httpd24-mod_ssl 2.4.6-25.el7, httpd24-mod_ldap 2.4.6-25.el7, httpd24-httpd-tools 2.4.6-25.el7, httpd24-mod_session 2.4.6-25.el7, httpd24-httpd-manual 2.4.6-25.el7, +1 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.4) httpd24-httpd 2.4.6-22.el6, httpd24-mod_ssl 2.4.6-22.el6, httpd24-mod_ldap 2.4.6-22.el6, httpd24-httpd-tools 2.4.6-22.el6, httpd24-mod_session 2.4.6-22.el6, httpd24-httpd-manual 2.4.6-22.el6, +1 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.5) httpd24-httpd 2.4.6-22.el6, httpd24-mod_ssl 2.4.6-22.el6, httpd24-mod_ldap 2.4.6-22.el6, httpd24-httpd-tools 2.4.6-22.el6, httpd24-mod_session 2.4.6-22.el6, httpd24-httpd-manual 2.4.6-22.el6, +1 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Server EUS (v. 6.6) httpd24-httpd 2.4.6-22.el6, httpd24-mod_ssl 2.4.6-22.el6, httpd24-mod_ldap 2.4.6-22.el6, httpd24-httpd-tools 2.4.6-22.el6, httpd24-mod_session 2.4.6-22.el6, httpd24-httpd-manual 2.4.6-22.el6, +1 more Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 6) httpd24-httpd 2.4.6-22.el6, httpd24-mod_ssl 2.4.6-22.el6, httpd24-mod_ldap 2.4.6-22.el6, httpd24-httpd-tools 2.4.6-22.el6, httpd24-mod_session 2.4.6-22.el6, httpd24-httpd-manual 2.4.6-22.el6, +1 more
    +1 more products
    Red Hat Software Collections 1 for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd 2.4.6-25.el7, httpd24-mod_ssl 2.4.6-25.el7, httpd24-mod_ldap 2.4.6-25.el7, httpd24-httpd-tools 2.4.6-25.el7, httpd24-mod_session 2.4.6-25.el7, httpd24-httpd-manual 2.4.6-25.el7, +1 more
    fixed: vendor fix RHSA-2014:1972
  • Red Hat CloudForms Management Engine 5 httpd Red Hat Directory Server 8 httpd Red Hat Enterprise Linux 4 httpd Red Hat Enterprise Linux 5 httpd Red Hat Enterprise Linux 6 httpd, mod_ssl, httpd-tools, httpd-manual Red Hat JBoss Enterprise Application Platform 6 httpd, mod_ssl, mod_ldap, httpd-tools, httpd-manual
    +2 more products
    Red Hat JBoss Enterprise Web Server 1 httpd Red Hat JBoss Enterprise Web Server 2 jbcs-httpd24, jbcs-httpd24-runtime
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

13.45% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.