Vulnerability Report

CVE-2002-1221

Title: BIND SIG RR invalid expiry times null dereference crash DoS

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2002-1221.

CWE Category NVD-CWE-noinfo

Published Date Nov 29, 2002

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

7.57%

Vulnerability Summary

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 removed from the internal BIND database and later cause a null dereference.

Impacted Vendors

isc 1

Reference Links

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 http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-077.php http://www.securityfocus.com/bid/6159 https://exchange.xforce.ibmcloud.com/vulnerabilities/10333 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2094 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 http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-077.php http://www.securityfocus.com/bid/6159 https://exchange.xforce.ibmcloud.com/vulnerabilities/10333 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2094

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2002-1221 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

November 29, 2002 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.