Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | <= 4.5 |
| Netbsd | Netbsd | 2.0.4 |
| Openbsd | Openbsd | All versions |
References
- ftp://patches.sgi.com/support/free/security/advisories/20030604-01-I
- http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diff?r1=1.136
- http://online.securityfocus.com/archive/1/262733ExploitPatchVendor Advisory
- http://www.FreeBSD.org/cgi/query-pr.cgi?pr=35022PatchVendor Advisory
- http://www.iss.net/security_center/static/8485.php
- http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diff?r1=1.109&
- http://www.osvdb.org/5308
- http://www.securityfocus.com/bid/4309
- ftp://patches.sgi.com/support/free/security/advisories/20030604-01-I
- http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/netinet/tcp_input.c.diff?r1=1.136
- http://online.securityfocus.com/archive/1/262733ExploitPatchVendor Advisory
- http://www.FreeBSD.org/cgi/query-pr.cgi?pr=35022PatchVendor Advisory
- http://www.iss.net/security_center/static/8485.php
- http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/tcp_input.c.diff?r1=1.109&
- http://www.osvdb.org/5308
FAQ
What is CVE-2002-0381?
CVE-2002-0381 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 pack...
How severe is CVE-2002-0381?
CVE-2002-0381 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2002-0381?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd, Netbsd Netbsd, Openbsd Openbsd.