USN-4399-1

It was discovered that Bind incorrectly handled large responses during zone transfers. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2020-8618)

It was discovered that Bind incorrectly handled certain asterisk characters in zone files. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2020-8619)

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"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-8618",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8619",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}