CVE DATABASE / CVE-2002-0514
CVE-2002-0514
CVSS 5 · MEDIUM
Summary
PF in OpenBSD 3.0 with the return-rst rule sets the TTL to 128 in the RST packet, which allows remote attackers to determine if a port is being filtered because the TTL is different than the default TTL.
CVSS 2.0 breakdown
| Base score | 5 (MEDIUM) |
| Vector | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Confidentiality | PARTIAL |
| Integrity | NONE |
| Availability | NONE |
Weakness type (CWE)
Affected products
Openbsd openbsd
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References
- http://www.iss.net/security_center/static/8738.php
- http://www.securityfocus.com/archive/1/265188
- http://www.securityfocus.com/bid/4401
Data: NIST NVD. NVD last modified 2026-04-16. Always verify against the vendor advisory before acting.