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CVE-2002-0514

nvd nist
Published: Aug 12, 2002Modified: Apr 16, 2026

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5.0
Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Exploitability: 10.0 / Impact: 2.9
Source: NVD

Description

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.

Affected (1)

Products: Openbsd: Openbsd
Openbsd
1 product
Openbsd
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Openbsd
Version 3.0

Related CWEs

CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (6)

Source: cve@mitre.org
Broken LinkVendor Advisory
Source: cve@mitre.org
Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
Source: cve@mitre.org
Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory

Timeline

No history available yet.