National Cyber-Alert System

Vulnerability Summary for CVE-2003-0466

Overview

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#743092

Name: VU#743092

Type: Advisory

Hyperlink:http://www.kb.cert.org/vuls/id/743092

External Source: BID

Name: 8315

Type: Advisory; Patch Information

Hyperlink:http://www.securityfocus.com/bid/8315

External Source: XF

Name: libc-realpath-offbyone-bo(12785)

Hyperlink:http://xforce.iss.net/xforce/xfdb/12785

External Source: TURBO

Name: TLSA-2003-46

Hyperlink:http://www.turbolinux.com/security/TLSA-2003-46.txt

External Source: BUGTRAQ

Name: 20060214 Re: Latest wu-ftpd exploit :-s

Hyperlink:http://www.securityfocus.com/archive/1/425061/100/0/threaded

External Source: BUGTRAQ

Name: 20060213 Latest wu-ftpd exploit :-s

Hyperlink:http://www.securityfocus.com/archive/1/424852/100/0/threaded

External Source: REDHAT

Name: RHSA-2003:246

Hyperlink:http://www.redhat.com/support/errata/RHSA-2003-246.html

External Source: REDHAT

Name: RHSA-2003:245

Hyperlink:http://www.redhat.com/support/errata/RHSA-2003-245.html

External Source: OSVDB

Name: 6602

Hyperlink:http://www.osvdb.org/6602

External Source: SUSE

Name: SuSE-SA:2003:032

Hyperlink:http://www.novell.com/linux/security/advisories/2003_032_wuftpd.html

External Source: DEBIAN

Name: DSA-357

Hyperlink:http://www.debian.org/security/2003/dsa-357

External Source: SECTRACK

Name: 1007380

Hyperlink:http://securitytracker.com/id?1007380

External Source: SECUNIA

Name: 9535

Hyperlink:http://secunia.com/advisories/9535

External Source: SECUNIA

Name: 9447

Hyperlink:http://secunia.com/advisories/9447

External Source: SECUNIA

Name: 9446

Hyperlink:http://secunia.com/advisories/9446

External Source: SECUNIA

Name: 9423

Hyperlink:http://secunia.com/advisories/9423

External Source: BUGTRAQ

Name: 20030804 Off-by-one Buffer Overflow Vulnerability in BSD libc realpath(3)

Hyperlink:http://marc.theaimsgroup.com/?l=bugtraq&m=106002488209129&w=2

External Source: BUGTRAQ

Name: 20030804 wu-ftpd-2.6.2 off-by-one remote exploit.

Hyperlink:http://marc.theaimsgroup.com/?l=bugtraq&m=106001702232325&w=2

External Source: FREEBSD

Name: FreeBSD-SA-03:08

Hyperlink:http://marc.theaimsgroup.com/?l=bugtraq&m=106001410028809&w=2

External Source: BUGTRAQ

Name: 20030731 wu-ftpd fb_realpath() off-by-one bug

Type: Advisory

Hyperlink:http://marc.theaimsgroup.com/?l=bugtraq&m=105967301604815&w=2

External Source: MISC

Name: http://isec.pl/vulnerabilities/isec-0011-wu-ftpd.txt

Hyperlink:http://isec.pl/vulnerabilities/isec-0011-wu-ftpd.txt

External Source: IMMUNIX

Name: IMNX-2003-7+-019-01

Hyperlink:http://download.immunix.org/ImmunixOS/7+/Updates/errata/IMNX-2003-7+-019-01

External Source: VULNWATCH

Name: 20030731 wu-ftpd fb_realpath() off-by-one bug

Type: Advisory

Hyperlink:http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0065.html

External Source: NETBSD

Name: NetBSD-SA2003-011.txt.asc

Hyperlink:ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-011.txt.asc

External Source: MANDRAKE

Name: MDKSA-2003:080

Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2003:080

US Government Resource: oval:org.mitre.oval:def:1970

Name: oval:org.mitre.oval:def:1970

Type: Tool Signature

Hyperlink:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:1970