CVE-2000-0489

FreeBSD NetBSD OpenBSD - Denial of Service via Socket Pair Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-0489. PoCs published by L. Sassaman.

AI-analyzed exploit summary This exploit triggers a denial of service (DoS) in BSD-based systems by manipulating socket buffer sizes in a socketpair, causing a kernel panic in FreeBSD or unresponsiveness in NetBSD/OpenBSD. It repeatedly sets large buffer sizes and writes data to exploit the vulnerability.

Description

FreeBSD, NetBSD, and OpenBSD allow an attacker to cause a denial of service by creating a large number of socket pairs using the socketpair function, setting a large buffer size via setsockopt, then writing large buffers.

Exploits (1)

exploitdb WORKING POC VERIFIED
by L. Sassaman · cdosbsd
https://www.exploit-db.com/exploits/19488

This exploit triggers a denial of service (DoS) in BSD-based systems by manipulating socket buffer sizes in a socketpair, causing a kernel panic in FreeBSD or unresponsiveness in NetBSD/OpenBSD. It repeatedly sets large buffer sizes and writes data to exploit the vulnerability.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FreeBSD, NetBSD, OpenBSD (all versions)
No auth needed
Prerequisites: Ability to execute code on the target system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/3298
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/622

Scores

EPSS 0.0070
EPSS Percentile 48.6%

Details

Status published
Products (14)
freebsd/freebsd 3.0
freebsd/freebsd 3.1
freebsd/freebsd 3.2
freebsd/freebsd 3.3
freebsd/freebsd 3.4
freebsd/freebsd 3.5
freebsd/freebsd 4.0
freebsd/freebsd 5.0 alpha
netbsd/netbsd 1.4
netbsd/netbsd 1.4.1 (4 CPE variants)
... and 4 more
Published Sep 05, 1999
Tracked Since Feb 18, 2026