CVE-2011-0419 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 30.4% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| EPSS | 30.41% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-770 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-05-16 |
| Last modified | 2026-06-16 |
Affected (10)
| Vendor | Product |
|---|---|
| apache | http server |
| apache | portable runtime |
| apple | mac os x |
| debian | debian linux |
| freebsd | freebsd |
| android | |
| netbsd | netbsd |
| openbsd | openbsd |
| oracle | solaris |
| suse | linux enterprise server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Apache 1.4/2.2.x - APR 'apr_fnmatch()' Denial of Service | 2011-05-12 |
References
- http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/gen/fnmatch.c#rev1.22
- http://cxib.net/stuff/apache.fnmatch.phps
- http://cxib.net/stuff/apr_fnmatch.txts
- http://httpd.apache.org/security/vulnerabilities_22.html
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00011.html
- http://marc.info/?l=bugtraq&m=131551295528105&w=2
- http://marc.info/?l=bugtraq&m=131731002122529&w=2
- http://marc.info/?l=bugtraq&m=132033751509019&w=2
- http://marc.info/?l=bugtraq&m=134987041210674&w=2
- http://secunia.com/advisories/44490
- http://secunia.com/advisories/44564
- http://secunia.com/advisories/44574
- http://secunia.com/advisories/48308
- http://securityreason.com/achievement_securityalert/98
- http://securityreason.com/securityalert/8246
- http://securitytracker.com/id?1025527
- http://support.apple.com/kb/HT5002
- http://svn.apache.org/viewvc/apr/apr/branches/1.4.x/strings/apr_fnmatch.c?r1=731029&r2=1098902
- http://svn.apache.org/viewvc?view=revision&revision=1098188
→ the Explorer · watch your stack · NVD