Unrated severityNVD Advisory· Published Jun 25, 2002· Updated Jun 16, 2026

CVE-2002-0381

Description

The TCP implementation in various BSD operating systems (tcp_input.c) does not properly block connections to broadcast addresses, which could allow remote attackers to bypass intended filters via packets with a unicast link layer address and an IP broadcast address.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FreeBSD/FreeBSD2 versions
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*range: <=4.5
- (no CPE)
NetBSD/NetBSD2 versions
cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*
- (no CPE)
OpenBSD/OpenBSD2 versions
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
- (no CPE)

Patches

Vulnerability mechanics

References

www.freebsd.org/cgi/query-pr.cginvdPatchVendor Advisory
online.securityfocus.com/archive/1/262733nvdExploitPatchVendor Advisory
patches.sgi.com/support/free/security/advisories/20030604-01-Invd
cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diffnvd
www.iss.net/security_center/static/8485.phpnvd
www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diffnvd
www.osvdb.org/5308nvd
www.securityfocus.com/bid/4309nvd

News mentions

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epss	0.002
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