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.
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https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00320.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9958
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8394
http://www.vupen.com/english/advisories/2010/1107
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http://www.mandriva.com/security/advisories?name=MDVSA-2009:195
http://www-01.ibm.com/support/docview.wss?uid=swg1PK99482
http://www-01.ibm.com/support/docview.wss?uid=swg1PK93225
http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/memory/unix/apr_pools.c?r1=678140&r2=800732
http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/CHANGES?revision=800732&view=markup
http://svn.apache.org/viewvc/apr/apr/branches/0.9.x/CHANGES?revision=800733&view=markup
http://svn.apache.org/viewvc/apr/apr-util/branches/1.3.x/misc/apr_rmm.c?r1=647687&r2=800735
http://svn.apache.org/viewvc/apr/apr-util/branches/0.9.x/misc/apr_rmm.c?r1=230441&r2=800736
http://support.apple.com/kb/HT3937
http://secunia.com/advisories/37221
http://secunia.com/advisories/37152
http://secunia.com/advisories/36233
http://secunia.com/advisories/36166
http://secunia.com/advisories/36140
http://secunia.com/advisories/36138
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http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00006.html
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html