CVE-2009-0537
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.
Key facts
- CVSS score
- 4.9 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:C- Weakness (CWE)
- CWE-189
- EPSS score
- 3.6% (89th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0541)
- Published
- March 9, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0541 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / interix
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
- openbsd / openbsd
References
- http://securityreason.com/achievement_securityalert/60
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c(Vendor Advisory)
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h
- http://www.securityfocus.com/archive/1/501505/100/0/threaded
- http://www.securityfocus.com/bid/34008(Exploit)
- http://www.securitytracker.com/id?1021818
- https://www.exploit-db.com/exploits/8163
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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