UBUNTU-CVE-2020-8618

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Source
https://ubuntu.com/security/CVE-2020-8618
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8618.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-8618
Upstream
Downstream
Related
Published
2020-06-17T00:00:00Z
Modified
2025-09-08T16:45:59Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.

References

Affected packages

Ubuntu:20.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.16.1-0ubuntu2.2

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.2",
            "binary_name": "dnsutils"
        }
    ],
    "availability": "No subscription required"
}