CVE-2002-1221

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2002-11-29 · updated 2026-06-16

Description

BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.

Affected products

FreeBSD: 4.4, 4.5, 4.6, 4.7
ISC BIND: 8.1, 8.1.1, 8.1.2, 8.2, 8.2.1, 8.2.2 (+8)
OpenBSD: 3.0, 3.1, 3.2

References

http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21469
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000546
http://lists.apple.com/archives/Security-announce/2002/Nov/msg00000.html
http://marc.info/?l=bugtraq&m=103713117612842&w=2
http://marc.info/?l=bugtraq&m=103763574715133&w=2
http://online.securityfocus.com/advisories/4999
http://online.securityfocus.com/archive/1/300019
http://www.cert.org/advisories/CA-2002-31.html
http://www.ciac.org/ciac/bulletins/n-013.shtml
http://www.debian.org/security/2002/dsa-196
http://www.isc.org/products/BIND/bind-security.html
http://www.kb.cert.org/vuls/id/581682

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