CVE-2011-1928: n/a vulnerability

CVE-2011-1928: The fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library 1.4.3 and 1.4.4, a...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:46 UTC (UTC+00:00)

Security readout for executives and security teams

This is a denial-of-service flaw in specific APR and Apache HTTP Server releases. A remote request could trigger an infinite loop when wildcard matching fails in certain configurations, making affected web services consume resources or hang. The bundle does not show data theft, code execution, or confirmed active exploitation. Exposure is most likely on internet-facing Apache HTTP Server 2.2.18 systems or applications using APR 1.4.3/1.4.4 with vulnerable wildcard matching paths. Risk depends on whether affected pattern matching is reachable through web requests. Treat as a moderate availability risk for legacy Apache estates. It is most urgent where affected versions are internet-facing or protect business-critical services. Modernized or vendor-patched systems are less likely to be exposed. Mitigation focus: Inventory Apache HTTP Server and APR versions across exposed systems.; Check Apache and OS vendor advisories for corrected packages and guidance.; Prioritize replacing APR 1.4.3, APR 1.4.4, and Apache HTTP Server 2.2.18 where present..

Prepared: Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 24, 2011, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
https://issues.apache.org/bugzilla/show_bug.cgi?id=51219CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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