CVE-2009-0023
4.3 · MEDIUMOverview
CVE-2009-0023 is a medium-severity vulnerability affecting apache apr-util. It was published on June 8, 2009 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from apache. Update apr-util to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | apr-util | 0 | Affected |
| apache | http_server | >= 2.2.0, < 2.2.12 | Affected |
References
Frequently Asked Questions
What is CVE-2009-0023?
CVE-2009-0023 is a medium-severity vulnerability affecting apache apr-util. It was published on June 8, 2009 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
How severe is CVE-2009-0023?
This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2009-0023?
Check the references section for vendor advisories and patches from apache. Update apr-util to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2009-0023?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-0023 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related MEDIUM CVEs from 2009
View all →hplip.postinst in HP Linux Imaging and Printing (HPLIP) 2.7.7 and 2.8.2 on Ubuntu allows local users
CUPS on Mandriva Linux 2008.0, 2008.1, 2009.0, Corporate Server (CS) 3.0 and 4.0, and Multi Network
Untrusted search path vulnerability in the PySys_SetArgv API function in Python 2.6 and earlier, and
winetricks before 20081223 allows local users to overwrite arbitrary files via a symlink attack on t
Untrusted search path vulnerability in the Python plugin in Dia 0.96.1, and possibly other versions,
Untrusted search path vulnerability in the Python interface in Epiphany 2.22.3, and possibly other v
Untrusted search path vulnerability in the (1) "VST plugin with Python scripting" and (2) "VST plugi
Untrusted search path vulnerability in the Python interface in Eye of GNOME (eog) 2.22.3, and possib
Untrusted search path vulnerability in the Python module in gedit allows local users to execute arbi
Untrusted search path vulnerability in the Python module in xchat allows local users to execute arbi
Untrusted search path vulnerability in src/if_python.c in the Python interface in Vim before 7.2.045
Untrusted search path vulnerability in the Python language bindings for Nautilus (nautilus-python) a