UBUNTU-CVE-2020-8621

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Source

https://ubuntu.com/security/notices/UBUNTU-CVE-2020-8621

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8621.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-8621

Related

Published

2020-08-20T00:00:00Z

Modified

2020-08-20T00:00:00Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.

References

Affected packages

Ubuntu:20.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.3?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.16.1-0ubuntu2.3

Affected versions

1:9.*

1:9.11.5.P4+dfsg-5.1ubuntu2

1:9.11.5.P4+dfsg-5.1ubuntu3

1:9.11.5.P4+dfsg-5.1ubuntu4

1:9.11.5.P4+dfsg-5.1ubuntu5

1:9.11.14+dfsg-1ubuntu1

1:9.11.14+dfsg-3ubuntu1

1:9.16.0-1ubuntu3

1:9.16.0-1ubuntu4

1:9.16.0-1ubuntu5

1:9.16.1-0ubuntu1

1:9.16.1-0ubuntu2

1:9.16.1-0ubuntu2.1

1:9.16.1-0ubuntu2.2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "bind9-doc": "1:9.16.1-0ubuntu2.3",
            "bind9-dnsutils-dbgsym": "1:9.16.1-0ubuntu2.3",
            "bind9-host": "1:9.16.1-0ubuntu2.3",
            "bind9-host-dbgsym": "1:9.16.1-0ubuntu2.3",
            "bind9utils": "1:9.16.1-0ubuntu2.3",
            "bind9-dbgsym": "1:9.16.1-0ubuntu2.3",
            "bind9-libs": "1:9.16.1-0ubuntu2.3",
            "bind9": "1:9.16.1-0ubuntu2.3",
            "bind9-utils": "1:9.16.1-0ubuntu2.3",
            "bind9-dnsutils": "1:9.16.1-0ubuntu2.3",
            "bind9-libs-dbgsym": "1:9.16.1-0ubuntu2.3",
            "bind9-utils-dbgsym": "1:9.16.1-0ubuntu2.3",
            "dnsutils": "1:9.16.1-0ubuntu2.3"
        }
    ]
}