CVE-2002-0514
First published: Tue Jun 11 2002(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | =3.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2002-0514?
CVE-2002-0514 is considered a medium severity vulnerability as it allows remote attackers to infer port filtering based on TTL values.
How do I fix CVE-2002-0514?
Fixing CVE-2002-0514 involves updating to a later version of OpenBSD that does not exhibit this behavior.
Who is affected by CVE-2002-0514?
CVE-2002-0514 affects users of OpenBSD version 3.0 with the PF packet filtering functionality enabled.
What is the impact of CVE-2002-0514?
The impact of CVE-2002-0514 is that it can allow attackers to identify filtered ports, potentially compromising security.
Is CVE-2002-0514 still a threat today?
CVE-2002-0514 is less of a threat today due to the outdated software version it affects, but users still running OpenBSD 3.0 should be aware.
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