Vulnerability in FreeBSD

CVE-2002-1220

BIND 8.3.x through 8.3.3 allows remote attackers to cause a denial of service (termination due to assertion failure) via a request for a subdomain that does not exist, with an OPT resource record with a large UDP payload size.

Published 2002-11-29 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.096 (95.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.096 · newest: 0.096 · change: 0.000

Affected products

FreeBSD — versions 4.4, 4.5, 4.6
Isc Bind — versions 8.3.0, 8.3.1, 8.3.2
OpenBSD — versions 3.0, 3.1, 3.2

References

www.cert.org/advisories/CA-2002-31.html (US Government Resource, third-party-advisory)
www.isc.org/products/BIND/bind-security.html (Patch, Vendor Advisory)
lists.apple.com/archives/Security-announce/2002/Nov/msg00000.html (vendor-advisory)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:449 (signature, vdb-entry)
www.debian.org/security/2002/dsa-196 (vendor-advisory)
online.securityfocus.com/advisories/4999 (vendor-advisory)
marc.info/ (mailing-list)
www.kb.cert.org/vuls/id/229595 (US Government Resource, third-party-advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/10332 (vdb-entry)
www.securityfocus.com/bid/6161 (vdb-entry)