CVE-2009-0537

medium

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.

References

https://www.exploit-db.com/exploits/8163

http://www.securitytracker.com/id?1021818

http://www.securityfocus.com/archive/1/501505/100/0/threaded

http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h

http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c

http://securityreason.com/achievement_securityalert/60

Details

Source: Mitre, NVD

Published: 2009-03-09

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.04498