Quantum Secular Labs / Blog / Advisories
CVE-2002-2198: Zmailer: Buffer overflow
CVE-2002-2198 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Zmailer. 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 ZMailer before 2.99.51_1 allows remote attackers to execute arbitrary code during HELO processing from an IPv6 address, possibly using an address that resolves to a long hostname.
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
- Zmailer: 2.99.45; 2.99.46; 2.99.47; 2.99.48; 2.99.49; 2.99.50; 2.99.51