CVE-2003-0466

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 78.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2003-08-27 · updated 2026-06-16
Weakness: CWE-193

Description

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.

Affected products

macOS: 10.2.6
Apple Mac Os X Server: 10.2.6
FreeBSD: from 4.0 through 5.0
Netbsd: from 1.5 through 1.6.1
OpenBSD: from 2.0 through 3.3
RedHat Wu Ftpd: 2.6.1-16
Sun Solaris: 9.0
Wuftpd Wu-Ftpd: from 2.5.0 through 2.6.2

References

http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0065.html
http://download.immunix.org/ImmunixOS/7+/Updates/errata/IMNX-2003-7+-019-01
http://isec.pl/vulnerabilities/isec-0011-wu-ftpd.txt
http://marc.info/?l=bugtraq&m=105967301604815&w=2
http://marc.info/?l=bugtraq&m=106001410028809&w=2
http://marc.info/?l=bugtraq&m=106001702232325&w=2
http://marc.info/?l=bugtraq&m=106002488209129&w=2
http://secunia.com/advisories/9423
http://secunia.com/advisories/9446
http://secunia.com/advisories/9447
http://secunia.com/advisories/9535

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