Apache APR-util apr_strmatch_precompile() denial of service

aprutil-aprstrmatchprecompile-dos (50964) The risk level is classified as MediumMedium Risk

Description:

The APR-util in Apache is vulnerable to a denial of service caused by an integer underflow in the apr_strmatch_precompile() function in strmatch/apr_strmatch.c. An attacker can exploit this vulnerability to cause the application using the library to crash.IBM3

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of APR-util (1.3.5 or later), available from the Apache Web site. See References.

For WebSphere Application Server 6.0:
Apply the latest Fix Pack (6.0.2.37 or later) or APAR PK88341. See References.

For WebSphere Application Server 6.1:
Apply the latest Fix Pack (6.1.0.27 or later) or APAR PK88341. See References.

For WebSphere Application Server 7.0:
Apply the latest Fix Pack (7.0.0.7 or later) or APAR PK88341. See References.

For IBM HTTP Server:
Apply the Interim Fix for this vulnerability (APAR PK91361), available from IBM Support and Downloads Web site. See References.

For other distributions:
Apply the appropriate update for your system.

References:

  • Apache SVN Repository: [Apache-SVN] Revision 779880.
  • Apache Web site: CHANGES-APR-UTIL-1.3.
  • Apple Web site: About Security Update 2009-006 / Mac OS X v10.6.2.
  • IBM APAR PK88341: Recommended fixes for WebSphere Application Server Recommended fixes for WebSphere Application Server.
  • IBM APAR PK91241: Z/OS IBM HTTP SERVER FOR WEBSPHERE (POWERED BY APACHE) FIX PACK 6.1.0.27.
  • IBM APAR PK96157: SHIP APAR FIXES FOR H28W601 FIX PACK 6.0.2.39. 09/09/14 PTF PECHANGE.
  • IBM APAR PM10658: IBM HTTP SERVER 2.0.47 CUMULATIVE INTERIM FIX.
  • IBM Support and Downloads Web site: IBM HTTP Server interim fix for PK91361.
  • Sun Security Blog, 29 Apr 2011: CVE-2009-0023 Buffer Overflow vulnerability in Apache Portable Runtime Utility (APR-util).
  • ASA-2009-244: apr-util security update (RHSA-2009-1107)
  • ASA-2009-269: httpd security update (RHSA-2009-1108)
  • BID-35221: Apache APR-util 'apr_strmatch_precompile()' Integer Underflow Vulnerability
  • BID-37159: IBM WebSphere Portal Cross Site Scripting and Unspecified Security Vulnerabilities
  • 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.
  • DSA-1812: apr-util -- denial of service
  • GLSA-200907-03: APR Utility Library: Multiple vulnerabilities
  • MDVSA-2009:131: apr-util
  • MDVSA-2009:131-1: apr-util
  • MDVSA-2009:314: apr
  • RHSA-2009-1107: Moderate: apr-util security update
  • RHSA-2009-1108: Moderate: httpd security update
  • RHSA-2009-1160: Important: httpd22 security update
  • RHSA-2010-0602: Moderate: Red Hat Certificate System 7.3 security update
  • SA35284: Apache APR-util Library Multiple Vulnerabilities
  • SA35797: Apache APR-util Library Multiple Vulnerabilities
  • SA35843: IBM WebSphere Application Server for z/OS Denial of Service
  • SA37221: IBM WebSphere Application Server for z/OS Multiple Vulnerabilities
  • SA37545: IBM WebSphere Application Server for z/OS Multiple Vulnerabilities
  • SA39781: IBM HTTP Server Multiple Vulnerabilities
  • SA44445: Oracle Solaris Apache APR-util Multiple Vulnerabilities
  • SUSE-SR:2009:013: SUSE Security Summary Report
  • USN-786-1: apr-util vulnerabilities
  • USN-787-1: Apache vulnerabilities
  • VUPEN/ADV-2009-1907: IBM WebSphere Application Server for z/OS Denial of Service Issues
  • VUPEN/ADV-2009-3184: Apple Mac OS X Code Execution and Security Bypass Vulnerabilities
  • VUPEN/ADV-2009-3367: IBM WebSphere Portal Cross Site Scripting and Security Bypass Issues
  • VUPEN/ADV-2009-3395: IBM WebSphere Application Server for z/OS Multiple Vulnerabilities
  • VUPEN/ADV-2010-1124: IBM HTTP Server Code Execution and Security Bypass Vulnerabilities
  • VUPEN/ADV-2011-1158: Sun Solaris Apache APR-util Remote Denial of Service Vulnerabilities

Platforms Affected:

  • Apache APR-util 0.9.1
  • Apache APR-util 0.9.2
  • Apache APR-util 0.9.3
  • Apache APR-util 0.9.4
  • Apache APR-util 0.9.5
  • Apache APR-util 1.0
  • Apache APR-util 1.0.1
  • Apache APR-util 1.0.2
  • Apache APR-util 1.1.0
  • Apache APR-util 1.1.1
  • Apache APR-util 1.1.2
  • Apache APR-util 1.2.1
  • Apache APR-util 1.2.2
  • Apache APR-util 1.2.6
  • Apache APR-util 1.2.7
  • Apache APR-util 1.2.8
  • Apache APR-util 1.3.0
  • Apache APR-util 1.3.1
  • Apache APR-util 1.3.2
  • Apache APR-util 1.3.3
  • Apache APR-util 1.3.4
  • Apple Mac OS X 10.5.8
  • Apple Mac OS X 10.6
  • Apple Mac OS X 10.6.1
  • Apple Mac OS X Server 10.5.8
  • Apple Mac OS X Server 10.6
  • Apple Mac OS X Server 10.6.1
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 4.0
  • Debian Debian Linux 5.0
  • Gentoo Linux
  • IBM HTTP Server 2.0.47
  • IBM HTTP Server 6.0
  • IBM HTTP Server 6.0.1
  • IBM HTTP Server 7.0
  • IBM WebSphere Application Server 6.0
  • IBM WebSphere Application Server 6.1
  • IBM WebSphere Application Server 7.0
  • JBoss Enterprise Web Server
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.1
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • Mandriva Linux 2009.0 X86_64
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.1 X86_64
  • Mandriva Linux 2009.1
  • RedHat Certificate System 7.3
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5.3.z EUS
  • RedHat Enterprise Linux Long Life 5.3
  • Sun Solaris 10

Reported:

May 29, 2009

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