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Fencer Intel
medium 4.3

CVE-2011-0419 json

Stack consumption vulnerability in the fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library before 1.4.3 an…

published 2011-05-16 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0445

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
30.4%
EPSS 30.4% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • apache portable_runtime 1.4.3
  • apr Debian 14, Debian 13, Debian 12 1.4.4-1

debian advisories DEBIAN-CVE-2011-0419

  • ant jboss enterprise web server 1 1.7.1-13.jdk6.ep5.el4
  • ant jboss enterprise web server 1 1.7.1-13.jdk6.ep5.el5
  • ant jboss enterprise web server 1 1.7.1-14.ep5.el6
  • ecj jboss enterprise web server 1 1:3.3.1.1-3.2.2.jdk6.ep5.el4
  • bcel jboss enterprise web server 1 5.2-8.1.ep5.el4
  • ecj3 jboss enterprise web server 1 1:3.3.1.1-3.1.1.1.jdk6.ep5.el5
  • ecj3 jboss enterprise web server 1 1:3.3.1.1-4.ep5.el6
  • mx4j jboss enterprise web server 1 1:3.0.1-9.3.4.ep5.el4

red hat advisories RHSA-2011:0897RHSA-2011:0507

  • apr openSUSE Tumbleweed 1.5.2-3.4
  • apr openSUSE Tumbleweed 1.7.0-3.1

opensuse advisories openSUSE-SU-2024:10063-1openSUSE-SU-2024:11596-1

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-2011-0419 updated cvss 4.3

apr: unconstrained recursion in apr_fnmatch

  • Red Hat Enterprise Linux (v. 5 server) apr 1.2.7-11.el5_6.4 Red Hat Enterprise Linux AS version 4 apr 0.9.4-25.el4 Red Hat Enterprise Linux Desktop (v. 5 client) apr 1.2.7-11.el5_6.4 Red Hat Enterprise Linux Desktop (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux Desktop Optional (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux Desktop version 4 apr 0.9.4-25.el4
    +7 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) apr 1.2.7-11.el5_6.4 Red Hat Enterprise Linux ES version 4 apr 0.9.4-25.el4 Red Hat Enterprise Linux HPC Node (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux Server (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux Workstation (v. 6) apr 1.3.9-3.el6_0.1 Red Hat Enterprise Linux WS version 4 apr 0.9.4-25.el4
    fixed: vendor fix RHSA-2011:0507
  • Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Server antlr 2.7.7-7.ep5.el5, dom4j 1.6.1-11.ep5.el5, ant 1.7.1-13.jdk6.ep5.el5, httpd 2.2.17-11.1.ep5.el5, mod_jk 1.2.31-1.1.ep5.el5, struts12 1.2.9-3.1.ep5.el5, +103 more Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Server ant 1.7.1-14.ep5.el6, antlr 2.7.7-7.ep5.el6, cglib 2.2-5.4.ep5.el6, ecj3 3.3.1.1-4.ep5.el6, ant-jmf 1.7.1-14.ep5.el6, dom4j 1.6.1-11.1.ep5.el6, +110 more
    fixed: vendor fix RHSA-2011:0897
  • Red Hat JBoss Web Server 1.0
    fixed: vendor fix RHSA-2011:0896
  • Red Hat JBoss Web Server 1.0 for RHEL 4 AS bcel 5.2-8.1.ep5.el4, antlr 2.7.7-7.ep5.el4, dom4j 1.6.1-11.ep5.el4, mod_jk 1.2.31-1.ep5.el4, mx4j 3.0.1-9.3.4.ep5.el4, struts12 1.2.9-3.ep5.el4, +97 more Red Hat JBoss Web Server 1.0 for RHEL 4 ES bcel 5.2-8.1.ep5.el4, antlr 2.7.7-7.ep5.el4, dom4j 1.6.1-11.ep5.el4, mod_jk 1.2.31-1.ep5.el4, mx4j 3.0.1-9.3.4.ep5.el4, struts12 1.2.9-3.ep5.el4, +97 more
    fixed: vendor fix RHSA-2011:0897

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

Timeline

  1. First public exploit (EDB-35738)
  2. Published

Exploit prediction

30.41% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-35738 Apache 1.4/2.2.x - APR 'apr_fnmatch()' Denial of Service dos, 2011-05-12
  • securityreason.com http://securityreason.com/achievement_securityalert/98 referenced PoC, tagged "exploit" by a source, unverified
  • securityreason.com http://securityreason.com/securityalert/8246 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling
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.