IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is not being filtered, which allows remote attackers to identify filtered ports by comparing TTLs.
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Fixes

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-08T02:49:28.915Z

Reserved: 2002-06-07T00:00:00

Link: CVE-2002-0515

cve-icon Vulnrichment

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cve-icon NVD

Status : Deferred

Published: 2002-08-12T04:00:00.000

Modified: 2025-04-03T01:03:51.193

Link: CVE-2002-0515

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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