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CVE-2002-0432: Citadel Ux: Buffer overflow

CVE-2002-0432 has a CVSS v2 base score of 10.0 (the maximum on that scale) and NVD lists Citadel Ux as the affected product. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Buffer overflow in (1) lprintf and (2) cprintf in sysdep.c of Citadel/UX 5.90 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via attacks such as a long HELO command to the SMTP server.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

• Access vector: Network. Exploitable remotely over the network.
• Access complexity: Low. No special conditions are required.
• Authentication: None. No authentication is needed.
• Confidentiality impact: Complete. Total information disclosure.
• Integrity impact: Complete. Total loss of integrity.
• Availability impact: Complete. Total shutdown of the component.

Affected products

• Citadel Ux: up to and including 5.90

References

• http://www.iss.net/security_center/static/8426.php
• http://www.securityfocus.com/bid/4263
• http://online.securityfocus.com/archive/1/260934
• http://uncensored.citadel.org/pub/citadel/citadel-ux-5.91.tar.gz