Quantum Secular Labs / Blog / Advisories

CVE-2002-0416: Sh39 Mailserver: Buffer overflow

CVE-2002-0416 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Sh39 Mailserver. 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 SH39 MailServer 1.21 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a long command to the SMTP port.

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

  • Sh39 Mailserver: 1.2.1

References