4.3

CVE-2011-0419: apache http_server

Modified
AliasesRHSA-2011:0507DEBIAN-CVE-2011-0419
Published 16-05-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-0419 is a medium (CVSS 4.3) vulnerability in apache http_server. EPSS estimates a 30.41% chance of exploitation in the next 30 days, higher than 98.2% of scored vulnerabilities. 3 public exploits are recorded.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
30.41%
0%100%
High · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits3reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 4 · Related 2

Timeline

  1. 16-05-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

30.41%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

No change 0.00 pp

From 30.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (securityreason.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (securityreason.com)

    Maturity: unknown

  • exploit-databasedoslinuxVerified

    Apache 1.4/2.2.x - APR 'apr_fnmatch()' Denial of Service

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Redhat4 products
  • apr< 0:0.9.4-25.el4 | < 0:1.2.7-11.el5_6.4 | < 0:1.3.9-3.el6_0.1
  • apr-debuginfo< 0:0.9.4-25.el4 | < 0:1.2.7-11.el5_6.4 | < 0:1.3.9-3.el6_0.1
  • apr-devel< 0:0.9.4-25.el4 | < 0:1.2.7-11.el5_6.4 | < 0:1.3.9-3.el6_0.1
  • apr-docs< 0:1.2.7-11.el5_6.4
Apache2 products
Debian2 products
Apple1 product
Netbsd1 product
Openbsd1 product
Oracle1 product
Suse1 product

8 vendors · 13 products

References

65 links
Show all 65 references