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Vulnerabilities

Vulnerability · CVE-2011-0419

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 bef…

Published May 16, 2011 · catalog updated Jun 16, 2026 · portable runtime

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2011-0419 is not in CISA KEV. FIRST estimates a 30.41% chance of exploitation in the next 30 days. Check whether you run portable runtime.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
30.41%
Remediation
Version ranges on file
Affected products
cpe apache/http server · cpe apache/portable runtime · cpe apple/mac os x · cpe netbsd/netbsd · cpe openbsd/openbsd

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/http server>= 2.0.0, <= 2.0.65
  • cpe apache/http server>= 2.2.0, <= 2.2.18
  • cpe apache/portable runtime< 1.4.3
  • cpe apple/mac os x10.6.0
  • cpe netbsd/netbsd5.1
  • cpe openbsd/openbsd4.8

How to fix CVE-2011-0419

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2011-0419 is not in CISA KEV. FIRST estimates a 30.41% chance of exploitation in the next 30 days. Check whether you run portable runtime.

Which versions are affected?

Compare what you have installed with apache/http server >= 2.0.0, <= 2.0.65; apache/http server >= 2.2.0, <= 2.2.18; apache/portable runtime < 1.4.3; apple/mac os x 10.6.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 30.41%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 16, 2011 · Monitored products — critical

    Detected

    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 *? sequen

  2. Jun 16, 2026 · Monitored products — critical

    Updated

    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 *? sequen

Sources

  • CVE.orgVulnerability recordCVE-2011-0419

    Official CVE identifier

    cve.org
  • Monitored products — criticalVendor advisoryCVE-2011-0419

    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 *? sequen

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — criticalNov 4, 2026