CVE-2014-3583: Apache HTTP Server

Medium severity, CVSS 5.0. EPSS: 10.8% chance of exploitation in the next 30 days.

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.

Affected products

• Apache HTTP Server: version 2.4.10 only
• Apple Mac OS X: version 10.9.5 only; version 10.10.0 only; version 10.10.1 only; version 10.10.2 only; version 10.10.3 only; version 10.10.4 only
• Apple OS X Server: version 5.0.3 only
• Canonical Ubuntu Linux: version 10.04 only; version 12.04 only; version 14.04 only; version 14.10 only

Published 2014-12-15. Last modified 2026-06-17.