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High USN-4197-1 1 CVE

bind9 vulnerability

Published Nov 21, 2019 · Updated Apr 22, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Bind incorrectly handled certain TCP-pipelined
queries. A remote attacker could possibly use this issue to cause Bind to
consume resources, resulting in a denial of service.

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS bind9 1:9.11.3+dfsg-1ubuntu1.11

Vulnerabilities 1

  • High 7.5
    CVE-2019-6477

    TCP-pipelined queries can bypass tcp-clients limit

    With pipelining enabled each incoming query on a TCP connection requires a similar resource allocation to a query received via UDP or via TCP without pipelining enabled. A client using a TCP-pipelined connection to a server could consume more resources than t…

    ISC BIND9 bind9 bind9 Debian Ubuntu Alpine

References

  • report
    https://ubuntu.com/security/CVE-2019-6477