UBUNTU-CVE-2019-19331

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Source
https://ubuntu.com/security/CVE-2019-19331
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19331.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-19331
Related
Published
2019-12-16T16:15:00Z
Modified
2024-10-25T04:26:27Z
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
Summary
[none]
Details

knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).

References

Affected packages

Ubuntu:Pro:16.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0.0~beta2-123-g6134920-1
1.0.0~beta3-1
1.0.0~beta3-1ubuntu0.1~esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.3-1
1.5.0-4
1.5.1-1
1.5.2-1

2.*

2.0.0-3
2.1.0-1
2.1.0-2
2.1.1-1
2.1.1-1ubuntu0.1~esm2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2.1-3ubuntu2.2

Affected versions

3.*

3.2.1-3
3.2.1-3ubuntu1
3.2.1-3ubuntu2
3.2.1-3ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver"
        },
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver-dbgsym"
        },
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver-doc"
        },
        {
            "binary_version": "3.2.1-3ubuntu2.2",
            "binary_name": "knot-resolver-module-http"
        }
    ]
}

Ubuntu:22.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.4.4-1

Affected versions

5.*

5.3.1-1
5.4.2-1
5.4.3-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "5.4.4-1",
            "binary_name": "knot-resolver"
        },
        {
            "binary_version": "5.4.4-1",
            "binary_name": "knot-resolver-dbgsym"
        },
        {
            "binary_version": "5.4.4-1",
            "binary_name": "knot-resolver-doc"
        },
        {
            "binary_version": "5.4.4-1",
            "binary_name": "knot-resolver-module-http"
        }
    ]
}