Buffer overflow in Apache Apr-Util
CVE-2009-0023
The apr_strmatch_precompile function in strmatch/apr_strmatch.c in Apache APR-util before 1.3.5 allows remote attackers to cause a denial of service (daemon crash) via crafted input involving (1) a .htaccess file used with the Apache HTTP Server, (2) the SVNMasterURI directive in the mod_dav_svn module in the Apache HTTP Server, (3) the mod_apreq2 module for the Apache HTTP Server, or (4) an application that uses the libapreq2 library, which triggers a heap-based buffer underflow.
Vulnerability class: Buffer Overflow
EPSS: 0.085 (94.7th percentile) — read the EPSS interpretation.
Affected products
- Apache Apr-util — versions 0.9.1, 0.9.2, 0.9.3
- Apache Http_server
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (vendor-advisory, Patch, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, vdb-entry, x_refsource_VUPEN)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA, Third Party Advisory)
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_AIXAPAR)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_MANDRIVA)
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2009-0023?
- CVE-2009-0023 is a vulnerability in Apache Apr-Util, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2009-06-08.
- Is CVE-2009-0023 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.