OpenBSD 3.4 and NetBSD 1.6 and 1.6.1 allow remote attackers to cause a denial of service (crash) by sending an IPv6 packet with a small MTU to a listening port and then issuing a TCP connect to that port.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Netbsd | Netbsd | 1.6 (including) | 1.6 (including) |
| Netbsd | Netbsd | 1.6.1 (including) | 1.6.1 (including) |
| Openbsd | Openbsd | 3.0 (including) | 3.0 (including) |
| Openbsd | Openbsd | 3.1 (including) | 3.1 (including) |
| Openbsd | Openbsd | 3.2 (including) | 3.2 (including) |
| Openbsd | Openbsd | 3.3 (including) | 3.3 (including) |
| Openbsd | Openbsd | 3.4 (including) | 3.4 (including) |
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-002.txt.asc
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-February/016704.html
- http://marc.info/?l=bugtraq\u0026m=107604603226564\u0026w=2
- http://www.guninski.com/obsdmtu.html
- http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet6/ip6_output.c
- http://www.osvdb.org/3825
- http://www.securityfocus.com/bid/9577
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15044
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-002.txt.asc
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-February/016704.html
- http://marc.info/?l=bugtraq\u0026m=107604603226564\u0026w=2
- http://www.guninski.com/obsdmtu.html
- http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet6/ip6_output.c
- http://www.osvdb.org/3825
- http://www.securityfocus.com/bid/9577
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15044