CVE-2011-0419 Denial of service in n/a

What is CVE-2011-0419?

CVE-2011-0419 is a medium-severity denial of service vulnerability in Apache Http Server, published on 16 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack consumption vulnerability in the fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library before 1.4.3 and the Apache HTTP Server before 2.2.18, and in fnmatch.c in libc in NetBSD 5.1, OpenBSD 4.8, FreeBSD, Apple Mac OS X 10.6, Oracle Solaris 10, and Android, allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via *? sequences in the first argument, as demonstrated by attacks against mod_autoindex in httpd.

Weakness: CWE-770

Which versions are affected by CVE-2011-0419?

It affects 10 products.

Products include Apache Http Server, Apache Portable Runtime, Apple Mac Os X, Debian Debian Linux, Freebsd Freebsd, Google Android and 4 more.

How do I fix CVE-2011-0419?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-0419 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-0419 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Apache Http Server

• CVE-2021-42013 Apache HTTP Server Path Traversal Exploited Critical 9.8
• CVE-2024-38475 Apache HTTP Server Improper Escaping of Output Exploited Critical 9.1
• CVE-2021-40438 Apache HTTP Server-Side Request Forgery (SSRF) Exploited Critical 9.0
• CVE-2019-0211 Apache HTTP Server Privilege Escalation Exploited High 7.8
• CVE-2021-41773 Apache HTTP Server Path Traversal Exploited High 7.5

All Apache Http Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-0419, GHSA-hx32-x2cq-h45v, RHSA-2011:0507.