apr: DoS flaw in apr_fnmatch() due to fix for CVE-2011-0419
Published May 24, 2011
4.3
MEDIUMCVSS 2.0
EPSS 10.32%
Description
The fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library 1.4.3 and 1.4.4, and the Apache HTTP Server 2.2.18, allows remote attackers to cause a denial of service (infinite loop) via a URI that does not match unspecified types of wildcard patterns, as demonstrated by attacks against mod_autoindex in httpd when a /*/WEB-INF/ configuration pattern is used. NOTE: this issue exists because of an incorrect fix for CVE-2011-0419.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
apr-0:0.9.4-26.el4
Fixed · RHSA-2011:0844
Red Hat Enterprise Linux 5
apr-0:1.2.7-11.el5_6.5
Fixed · RHSA-2011:0844
Red Hat Enterprise Linux 6
apr-0:1.3.9-3.el6_1.2
Fixed · RHSA-2011:0844
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | apr-0:0.9.4-26.el4 | Fixed | RHSA-2011:0844 |
| Red Hat Enterprise Linux 5 | apr-0:1.2.7-11.el5_6.5 | Fixed | RHSA-2011:0844 |
| Red Hat Enterprise Linux 6 | apr-0:1.3.9-3.el6_1.2 | Fixed | RHSA-2011:0844 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.32% (0.10322) | 95.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.32% (0.10322) | 95.10th | v5 (v2026.06.15) |
| Mar 30, 2025 | 14.39% (0.14392) | 93.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 17.15% (0.17148) | 91.73th | v4 (v2025.03.14) |
| Mar 17, 2025 | 14.39% (0.14392) | 93.90th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.52% (0.05516) | 93.11th | v3 (v2023.03.01) |
| Nov 8, 2023 | 3.40% (0.03395) | 90.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.66% (0.01658) | 85.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.39% (0.06394) | 90.94th | v2 (v2022.01.01) |
| Feb 13, 2023 | 6.39% (0.06394) | 90.61th | v2 (v2022.01.01) |
| Feb 3, 2023 | 7.34% (0.07344) | 92.30th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.39% (0.06394) | 90.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.39% (0.06394) | 77.96th | v2 (v2022.01.01) |
References (21)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627182 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00011.html vendor-advisoryx_refsource_SUSE
- http://mail-archives.apache.org/mod_mbox/httpd-announce/201105.mbox/%3C4DD55092.3030403%40apache.org%3E mailing-listx_refsource_MLIST
- http://mail-archives.apache.org/mod_mbox/www-announce/201105.mbox/%3c4DD55076.1060005%40apache.org%3e mailing-listx_refsource_MLIST
- http://marc.info/?l=bugtraq&m=134987041210674&w=2 vendor-advisoryx_refsource_HP
- http://openwall.com/lists/oss-security/2011/05/19/10 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/05/19/5 mailing-listx_refsource_MLIST
- http://secunia.com/advisories/44558 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44613 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/44661 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44780 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/48308 third-party-advisoryx_refsource_SECUNIA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:095 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2011-0844.html vendor-advisoryx_refsource_REDHAT
- http://www.vupen.com/english/advisories/2011/1289 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/1290 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2011-1928 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=706203 Issue Tracking
- https://issues.apache.org/bugzilla/show_bug.cgi?id=51219 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2011-1928
- https://www.cve.org/CVERecord?id=CVE-2011-1928
Change history (0)
No recorded changes yet.