{"id":"CVE-2009-0537","aliases":["EUVD-2009-0541","GHSA-9fjq-qvpr-gcq2"],"status":"published","title":"Integer overflow in the fts_build function in fts.c in libc in (1) OpenBSD 4.4 and earlier and (2...","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.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03592,"percentile":0.89514,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-189"],"published":"2009-03-09T21:00:00Z","modified":"2026-06-16T23:05:15Z","exploits":[{"source":"exploitdb","id":"EDB-8163","title":"Libc - 'libc:fts_*()' Local Denial of Service","type":"dos","platform":"bsd","date":"2009-03-05","verified":true,"url":"https://www.exploit-db.com/exploits/8163"}],"products":[{"vendor":"microsoft","product":"interix"},{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"https://www.exploit-db.com/exploits/8163","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://www.securitytracker.com/id?1021818","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://securityreason.com/achievement_securityalert/60","tags":["third-party-advisory","x_refsource_SREASONRES","x_transferred"]},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securityfocus.com/bid/34008","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/501505/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0537"},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41;r2=1.42;f=h"},{"url":"https://github.com/advisories/GHSA-9fjq-qvpr-gcq2"}],"sources":{"cve":[{"id":"CVE-2009-0537","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.","status":"published","published":"2009-03-09T21:00:00Z","modified":"2024-08-07T04:40:03.697Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0541","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.","status":"published","published":"2009-03-09T21:00:00Z","modified":"2024-08-07T04:40:03Z","updated_at":"2026-11-03T01:39:25.189813Z"}],"ghsa":[{"id":"GHSA-9fjq-qvpr-gcq2","title":"Integer overflow in the fts_build function in fts.c in libc in (1) OpenBSD 4.4 and earlier and (2...","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.","status":"published","published":"2022-05-02T03:16:17Z","modified":"2025-04-09T04:06:09Z","updated_at":"2026-11-02T15:00:59.52588Z"}],"nvd":[{"id":"CVE-2009-0537","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.","status":"published","published":"2009-03-09T21:30:00.203Z","modified":"2026-06-16T23:05:15.36Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:01:34.44527Z"}]}}