VYPR
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

21
  • Isc/Bind14 versions
    cpe: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:*:*:*:*:*:*:*
  • FreeBSD/FreeBSD4 versions
    cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*
    • cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:*
  • OpenBSD/OpenBSD3 versions
    cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:*
    • cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:*
    • cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:*

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

News mentions

0

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