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CVE-2009-2412: Apache Apr Util: Buffer overflow

CVE-2009-2412 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Apache Apr Util. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

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.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Apache Apr Util: 0.9.1; 0.9.2; 0.9.2-dev; 0.9.3; 0.9.3-dev; 0.9.4; 0.9.5; 0.9.6; 0.9.7-dev; 0.9.8; 0.9.9; 0.9.16
  • Apache Portable Runtime: 0.9.1; 0.9.2; 0.9.2-dev; 0.9.3; 0.9.3-dev; 0.9.4; 0.9.5; 0.9.6; 0.9.7; 0.9.7-dev; 0.9.8; 0.9.9

References