Skip to content
OpenAdvisories
High USN-6421-1 1 CVE

bind9 vulnerability

Published Oct 9, 2023 · Updated Jun 29, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Bind incorrectly handled certain control channel
messages. A remote attacker with access to the control channel could
possibly use this issue to cause Bind to crash, resulting in a denial of
service.

Fixed packages 3

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS bind9 1:9.9.5.dfsg-3ubuntu0.19+esm11
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS bind9 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS bind9 1:9.11.3+dfsg-1ubuntu1.19+esm2

Vulnerabilities 1

  • High 7.5
    CVE-2023-3341

    A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly

    The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing co…

    ISC BIND 9 bind9 bind9 Debian Ubuntu Azure Linux Alpine

References

  • report
    https://ubuntu.com/security/CVE-2023-3341