CVE-2004-0257

Description

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.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 2.03% Top 20%

Vendor Advisory netbsd.org Vendor Advisory securityfocus.com

Affected: n/a n/a

References

Link	Tags
http://www.guninski.com/obsdmtu.html
http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet6/ip6_output.c
http://marc.info/?l=bugtraq&m=107604603226564&w=2	mailing list
http://lists.grok.org.uk/pipermail/full-disclosure/2004-February/016704.html	mailing list
http://www.osvdb.org/3825	vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/15044	vdb entry
http://www.securityfocus.com/bid/9577	vdb entry patch vendor advisory
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-002.txt.asc	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2004-0257?: CVE-2004-0257 has been scored as a medium severity vulnerability.
How to fix CVE-2004-0257?: To fix CVE-2004-0257, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2004-0257 being actively exploited in the wild?: It is possible that CVE-2004-0257 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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