Apache APR-util up to 1.3.8 apr-util misc/apr_rmm.c apr_rmm_realloc numeric error

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Apache APR-util. It has been rated as very critical. This issue affects the function apr_rmm_realloc of the file misc/apr_rmm.c of the component apr-util. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple integer overflows in the Apache Portable Runtime (APR) library and the Apache Portable Utility library (aka APR-util) 0.9.x and 1.3.x allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger crafted calls to the (1) allocator_alloc or (2) apr_palloc function in memory/unix/apr_pools.c in APR; or crafted calls to the (3) apr_rmm_malloc, (4) apr_rmm_calloc, or (5) apr_rmm_realloc function in misc/apr_rmm.c in APR-util; leading to buffer overflows. NOTE: some of these details are obtained from third party information.

The weakness was presented 08/04/2009 (Website). It is possible to read the advisory at www-01.ibm.com. The identification of this vulnerability is CVE-2009-2412 since 07/09/2009. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/13/2021).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67907 (Oracle Linux 4 / 5 : apr / apr-util (ELSA-2009-1204)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165658 (SUSE Enterprise Linux Security Update Apache and libapr (SUSE-SA:2009:050)).

A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (52540) and Tenable (67907).






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.4

VulDB Base Score: 10.0
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 67907
Nessus Name: Oracle Linux 4 / 5 : apr / apr-util (ELSA-2009-1204)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 64632
OpenVAS Name: Debian Security Advisory DSA 1854-1 (apr, apr-util)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


07/09/2009 🔍
08/04/2009 +26 days 🔍
08/04/2009 +0 days 🔍
08/05/2009 +0 days 🔍
08/05/2009 +0 days 🔍
08/05/2009 +0 days 🔍
08/06/2009 +0 days 🔍
08/06/2009 +0 days 🔍
08/10/2009 +4 days 🔍
07/12/2013 +1432 days 🔍
03/18/2015 +614 days 🔍
08/13/2021 +2340 days 🔍


Vendor: apache.org

Advisory: www-01.ibm.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2412 (🔍)

X-Force: 52540
Vulnerability Center: 23147 - Apache APR-Utils 0.9.7 Through 1.3.8 Integer Overflow Remote DoS and Code Execution Vulnerability, High
SecurityFocus: 35949 - Apache APR and APR-util Multiple Integer Overflow Vulnerabilities
Secunia: 36138 - Apache APR-util Multiple Vulnerabilities, Less Critical
OSVDB: 56765 - Apache Portable Runtime (APR-util) misc/apr_rmm.c Multiple Function Overflows
Vupen: ADV-2009-3184


Created: 03/18/2015 03:15 PM
Updated: 08/13/2021 02:11 PM
Changes: 03/18/2015 03:15 PM (68), 08/20/2017 10:03 PM (14), 08/13/2021 02:11 PM (2)
Complete: 🔍


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