Unrated severityNVD Advisory· Published Nov 29, 2002· Updated Jun 16, 2026
CVE-2002-1221
CVE-2002-1221
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
21cpe:2.3:a:isc:bind:8.1:*:*:*:*:*:*:*+ 13 more
- cpe:2.3:a:isc:bind:8.1:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:8.3.3:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
16- bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jspnvdPatchVendor Advisory
- www.isc.org/products/BIND/bind-security.htmlnvdPatchVendor Advisory
- www.cert.org/advisories/CA-2002-31.htmlnvdUS Government Resource
- www.kb.cert.org/vuls/id/581682nvdUS Government Resource
- distro.conectiva.com.br/atualizacoes/nvd
- lists.apple.com/archives/Security-announce/2002/Nov/msg00000.htmlnvd
- marc.infonvd
- marc.infonvd
- online.securityfocus.com/advisories/4999nvd
- online.securityfocus.com/archive/1/300019nvd
- www.ciac.org/ciac/bulletins/n-013.shtmlnvd
- www.debian.org/security/2002/dsa-196nvd
- www.linux-mandrake.com/en/security/2002/MDKSA-2002-077.phpnvd
- www.securityfocus.com/bid/6159nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/10333nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2094nvd
News mentions
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