CVE-2009-0537

Libc - 'libc:fts_*()' Local Denial of Service

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Desbordamiento de entero en la función fts_build en fts.c de libc sobre (1) OpenBSD v4.4 y anteriores y (2) Microsoft Interix v6.0 build 10.0.6030.0, permiten a atacantes, dependiendo del contexto, provocar una denegación de servicio (caída de la aplicación) a través de un arbol de directorio profundo, relativo al miembro de la estructura fts_level, como se ha demostrado por (a) du, (b) rm, (c) chmod, y (d) chgrp en OpenBSD; y (e)SearchIndexer.exe en Vista Enterprise.

*Credits: N/A

CVSS Scores

NISTv2 4.9

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-02-12 CVE Reserved
2009-03-05 CVE Published
2023-03-07 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors

CAPEC

References (7)

URL	Tag	Source
http://securityreason.com/achievement_securityalert/60	Third Party Advisory
http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h	X_refsource_confirm
http://www.securityfocus.com/archive/1/501505/100/0/threaded	Mailing List
http://www.securitytracker.com/id?1021818	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/8163	2024-08-07
http://www.securityfocus.com/bid/34008	2024-08-07

URL	Date	SRC

URL	Date	SRC
http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Interix Search vendor "Microsoft" for product "Interix"				6.0 Search vendor "Microsoft" for product "Interix" and version "6.0"		10.0.6030.0		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				<= 4.4 Search vendor "Openbsd" for product "Openbsd" and version " <= 4.4"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.0 Search vendor "Openbsd" for product "Openbsd" and version "2.0"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.1 Search vendor "Openbsd" for product "Openbsd" and version "2.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.2 Search vendor "Openbsd" for product "Openbsd" and version "2.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.3 Search vendor "Openbsd" for product "Openbsd" and version "2.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.4 Search vendor "Openbsd" for product "Openbsd" and version "2.4"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.5 Search vendor "Openbsd" for product "Openbsd" and version "2.5"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.6 Search vendor "Openbsd" for product "Openbsd" and version "2.6"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.7 Search vendor "Openbsd" for product "Openbsd" and version "2.7"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.8 Search vendor "Openbsd" for product "Openbsd" and version "2.8"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				2.9 Search vendor "Openbsd" for product "Openbsd" and version "2.9"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.0 Search vendor "Openbsd" for product "Openbsd" and version "3.0"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.1 Search vendor "Openbsd" for product "Openbsd" and version "3.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.2 Search vendor "Openbsd" for product "Openbsd" and version "3.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.3 Search vendor "Openbsd" for product "Openbsd" and version "3.3"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.4 Search vendor "Openbsd" for product "Openbsd" and version "3.4"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.5 Search vendor "Openbsd" for product "Openbsd" and version "3.5"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.6 Search vendor "Openbsd" for product "Openbsd" and version "3.6"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.7 Search vendor "Openbsd" for product "Openbsd" and version "3.7"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.8 Search vendor "Openbsd" for product "Openbsd" and version "3.8"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				3.9 Search vendor "Openbsd" for product "Openbsd" and version "3.9"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				4.0 Search vendor "Openbsd" for product "Openbsd" and version "4.0"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				4.1 Search vendor "Openbsd" for product "Openbsd" and version "4.1"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				4.2 Search vendor "Openbsd" for product "Openbsd" and version "4.2"		-		Affected
Openbsd Search vendor "Openbsd"		Openbsd Search vendor "Openbsd" for product "Openbsd"				4.3 Search vendor "Openbsd" for product "Openbsd" and version "4.3"		-		Affected