UBUNTU-CVE-2021-25219

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Source

https://ubuntu.com/security/CVE-2021-25219

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25219.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-25219

Upstream

CVE-2021-25219

Downstream

USN-5126-1

USN-5126-2

Related

Published

2021-10-27T00:00:00Z

Modified

2025-09-08T16:47:00Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

References

Affected packages

Ubuntu:Pro:14.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm5?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.9.5.dfsg-3ubuntu0.19+esm5

Affected versions

1:9.*

1:9.9.3.dfsg.P2-4ubuntu1

1:9.9.3.dfsg.P2-4ubuntu2

1:9.9.3.dfsg.P2-4ubuntu3

1:9.9.5.dfsg-2

1:9.9.5.dfsg-3

1:9.9.5.dfsg-3ubuntu0.1

1:9.9.5.dfsg-3ubuntu0.2

1:9.9.5.dfsg-3ubuntu0.3

1:9.9.5.dfsg-3ubuntu0.4

1:9.9.5.dfsg-3ubuntu0.5

1:9.9.5.dfsg-3ubuntu0.6

1:9.9.5.dfsg-3ubuntu0.7

1:9.9.5.dfsg-3ubuntu0.8

1:9.9.5.dfsg-3ubuntu0.9

1:9.9.5.dfsg-3ubuntu0.10

1:9.9.5.dfsg-3ubuntu0.11

1:9.9.5.dfsg-3ubuntu0.12

1:9.9.5.dfsg-3ubuntu0.13

1:9.9.5.dfsg-3ubuntu0.14

1:9.9.5.dfsg-3ubuntu0.15

1:9.9.5.dfsg-3ubuntu0.16

1:9.9.5.dfsg-3ubuntu0.17

1:9.9.5.dfsg-3ubuntu0.18

1:9.9.5.dfsg-3ubuntu0.19

1:9.9.5.dfsg-3ubuntu0.19+esm1

1:9.9.5.dfsg-3ubuntu0.19+esm2

1:9.9.5.dfsg-3ubuntu0.19+esm3

1:9.9.5.dfsg-3ubuntu0.19+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "host"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libbind9-90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libdns100"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libisc95"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libisccc90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "libisccfg90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "liblwres90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm5",
            "binary_name": "lwresd"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:Pro:16.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.19+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.10.3.dfsg.P4-8ubuntu1.19+esm1

Affected versions

1:9.*

1:9.9.5.dfsg-11ubuntu1

1:9.9.5.dfsg-12

1:9.9.5.dfsg-12.1

1:9.9.5.dfsg-12.1ubuntu1

1:9.10.3.dfsg.P2-4

1:9.10.3.dfsg.P2-5

1:9.10.3.dfsg.P4-3

1:9.10.3.dfsg.P4-4

1:9.10.3.dfsg.P4-5

1:9.10.3.dfsg.P4-8

1:9.10.3.dfsg.P4-8ubuntu1

1:9.10.3.dfsg.P4-8ubuntu1.1

1:9.10.3.dfsg.P4-8ubuntu1.2

1:9.10.3.dfsg.P4-8ubuntu1.3

1:9.10.3.dfsg.P4-8ubuntu1.4

1:9.10.3.dfsg.P4-8ubuntu1.5

1:9.10.3.dfsg.P4-8ubuntu1.6

1:9.10.3.dfsg.P4-8ubuntu1.7

1:9.10.3.dfsg.P4-8ubuntu1.8

1:9.10.3.dfsg.P4-8ubuntu1.9

1:9.10.3.dfsg.P4-8ubuntu1.10

1:9.10.3.dfsg.P4-8ubuntu1.11

1:9.10.3.dfsg.P4-8ubuntu1.12

1:9.10.3.dfsg.P4-8ubuntu1.14

1:9.10.3.dfsg.P4-8ubuntu1.15

1:9.10.3.dfsg.P4-8ubuntu1.16

1:9.10.3.dfsg.P4-8ubuntu1.17

1:9.10.3.dfsg.P4-8ubuntu1.18

1:9.10.3.dfsg.P4-8ubuntu1.19

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "host"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libbind-export-dev"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libbind9-140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libdns-export162"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libdns162"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libirs-export141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libirs141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisc-export160"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisc160"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisccc-export140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisccc140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisccfg-export140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "libisccfg140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "liblwres141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
            "binary_name": "lwresd"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:18.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.16?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.11.3+dfsg-1ubuntu1.16

Affected versions

1:9.*

1:9.10.3.dfsg.P4-12.6ubuntu1

1:9.11.2.P1-1ubuntu2

1:9.11.2.P1-1ubuntu3

1:9.11.2.P1-1ubuntu4

1:9.11.2.P1-1ubuntu5

1:9.11.3+dfsg-1ubuntu1

1:9.11.3+dfsg-1ubuntu1.1

1:9.11.3+dfsg-1ubuntu1.2

1:9.11.3+dfsg-1ubuntu1.3

1:9.11.3+dfsg-1ubuntu1.5

1:9.11.3+dfsg-1ubuntu1.7

1:9.11.3+dfsg-1ubuntu1.8

1:9.11.3+dfsg-1ubuntu1.9

1:9.11.3+dfsg-1ubuntu1.10

1:9.11.3+dfsg-1ubuntu1.11

1:9.11.3+dfsg-1ubuntu1.12

1:9.11.3+dfsg-1ubuntu1.13

1:9.11.3+dfsg-1ubuntu1.14

1:9.11.3+dfsg-1ubuntu1.15

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libbind-export-dev"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libbind9-160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libdns-export1100"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libdns1100"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libirs-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libirs160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisc-export169"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisc169"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisccc-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisccc160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisccfg-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "libisccfg160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16",
            "binary_name": "liblwres160"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.9?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.16.1-0ubuntu2.9

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

1:9.16.1-0ubuntu2.3

1:9.16.1-0ubuntu2.4

1:9.16.1-0ubuntu2.6

1:9.16.1-0ubuntu2.7

1:9.16.1-0ubuntu2.8

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.16.1-0ubuntu2.9",
            "binary_name": "dnsutils"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS / bind9

Package

Name: bind9
Purl: pkg:deb/ubuntu/bind9@1:9.16.15-1ubuntu2?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.16.15-1ubuntu2

Affected versions

1:9.*

1:9.16.15-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9-dev"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.16.15-1ubuntu2",
            "binary_name": "dnsutils"
        }
    ],
    "availability": "No subscription required"
}