CVE-2009-2412: Apache Apr-Util

High severity, CVSS 10.0. EPSS: 13.8% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Apr-Util: version 0.9.1 only; version 0.9.2 only; version 0.9.2-dev only; version 0.9.3 only; version 0.9.3-dev only; version 0.9.4 only; …
• Apache Portable Runtime: version 0.9.1 only; version 0.9.2 only; version 0.9.2-dev only; version 0.9.3 only; version 0.9.3-dev only; version 0.9.4 only; …

Published 2009-08-06. Last modified 2026-06-16.