CVE-2009-0537 Information

Description

Integer overflow in the fts_build function in fts.c in libc in (1) OpenBSD 4.4 and earlier and (2) Microsoft Interix 6.0 build 10.0.6030.0 allows context-dependent attackers to cause a denial of service (application crash) via a deep directory tree related to the fts_level structure member as demonstrated by (a) du (b) rm (c) chmod and (d) chgrp on OpenBSD; and (e) SearchIndexer.exe on Vista Enterprise.

Reference

http://securityreason.com/achievement_securityalert/60 http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41;r2=1.42;f=h http://www.securityfocus.com/archive/1/501505/100/0/threaded http://www.securityfocus.com/bid/34008 http://www.securitytracker.com/id?1021818 https://www.exploit-db.com/exploits/8163