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Fencer Intel
medium 5.0

CVE-2014-3583 json

The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers…

published 2014-12-15 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-3559

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.8%
EPSS 10.8% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

The handle_headers function in mod_proxy_fcgi.c in the mod_proxy_fcgi module in the Apache HTTP Server 2.4.10 allows remote FastCGI servers to cause a denial of service (buffer over-read and daemon crash) via long response headers.

Patch / fix

  • apache2 Debian 14, Debian 13, Debian 12 2.4.10-8

debian advisories DEBIAN-CVE-2014-3583

  • mod_proxy_fcgi RHEL 6 COMMON 2.4.10-5.20150415gitd45a11f.el6cp

red hat advisories RHSA-2015:1855

  • 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-2014-3583 updated cvss 2.6

httpd: mod_proxy_fcgi handle_headers() buffer over read

  • Red Hat Ceph Storage 1.2 mod_proxy_fcgi
    affected: no fix available
  • Red Hat Ceph Storage 1.2 for CentOS
    fixed: vendor fix RHSA-2015:1858
  • Red Hat Common for RHEL Server (v. 6) mod_proxy_fcgi 2.4.10-5.20150415gitd45a11f.el6cp
    fixed: vendor fix RHSA-2015:1855
  • Red Hat Directory Server 8 httpd Red Hat Enterprise Linux 5 httpd Red Hat Enterprise Linux 6 httpd, mod_ssl, httpd-tools, httpd-manual Red Hat Enterprise Linux 7 httpd, mod_ssl, mod_ldap, httpd-tools, mod_session, httpd-manual, +1 more Red Hat JBoss Enterprise Application Platform 6 httpd, mod_ssl, mod_ldap, httpd-tools, httpd-manual Red Hat JBoss Enterprise Web Server 1 httpd
    +2 more products
    Red Hat JBoss Enterprise Web Server 2 jbcs-httpd24, jbcs-httpd24-runtime Red Hat Software Collections httpd24-httpd, httpd24-mod_md, httpd24-mod_ssl, httpd24-mod_ldap, httpd24-httpd-tools, httpd24-mod_session, +2 more
    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

10.78% chance of exploitation in the next 30 days, higher than 95% 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
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
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.