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CVE-2021-25220

DNS forwarders - cache poisoning vulnerability

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • ISC BIND

    Open Source Branch 9.11 9.11.0 through versions before 9.11.37, Development Branch 9.17 BIND 9.17 all version, Open Source Branch 9.12-16 9.12.0 through versions before 9.16.27, Open Source Branch 9.18 9.18.0, Supported Preview Branch 9.11-S 9.11.0-S through versions before 9.11.37-S, Supported Preview Branch 9.16-S 9.16.0-S through versions before 9.16.27-S

References 10

kb.isc.org

lists.fedoraproject.org

security.netapp.com

cert-portal.siemens.com

security.gentoo.org

supportportal.juniper.net