UBUNTU-CVE-2020-19860

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Source
https://ubuntu.com/security/CVE-2020-19860
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-19860.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-19860
Upstream
Downstream
Related
Published
2022-01-21T14:15:00Z
Modified
2025-10-24T04:48:39Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

When ldns version 1.7.1 verifies a zone file, the ldnsrrnewfrmstr_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

References

Affected packages

Ubuntu:Pro:16.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.6.17-8ubuntu0.1+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.17-8ubuntu0.1+esm1

Affected versions

1.*

1.6.17-5
1.6.17-7
1.6.17-8
1.6.17-8ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldnsutils",
            "binary_version": "1.6.17-8ubuntu0.1+esm1"
        },
        {
            "binary_name": "libldns-dev",
            "binary_version": "1.6.17-8ubuntu0.1+esm1"
        },
        {
            "binary_name": "libldns1",
            "binary_version": "1.6.17-8ubuntu0.1+esm1"
        },
        {
            "binary_name": "python-ldns",
            "binary_version": "1.6.17-8ubuntu0.1+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:18.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.7.0-3ubuntu4.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.0-3ubuntu4.1

Affected versions

1.*

1.7.0-1ubuntu1
1.7.0-3ubuntu1
1.7.0-3ubuntu2
1.7.0-3ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldnsutils",
            "binary_version": "1.7.0-3ubuntu4.1"
        },
        {
            "binary_name": "libldns-dev",
            "binary_version": "1.7.0-3ubuntu4.1"
        },
        {
            "binary_name": "libldns2",
            "binary_version": "1.7.0-3ubuntu4.1"
        },
        {
            "binary_name": "python-ldns",
            "binary_version": "1.7.0-3ubuntu4.1"
        },
        {
            "binary_name": "python3-ldns",
            "binary_version": "1.7.0-3ubuntu4.1"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:20.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.7.0-4.1ubuntu1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.0-4.1ubuntu1+esm1

Affected versions

1.*

1.7.0-3ubuntu8
1.7.0-4
1.7.0-4ubuntu1
1.7.0-4.1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldnsutils",
            "binary_version": "1.7.0-4.1ubuntu1+esm1"
        },
        {
            "binary_name": "libldns-dev",
            "binary_version": "1.7.0-4.1ubuntu1+esm1"
        },
        {
            "binary_name": "libldns2",
            "binary_version": "1.7.0-4.1ubuntu1+esm1"
        },
        {
            "binary_name": "python-ldns",
            "binary_version": "1.7.0-4.1ubuntu1+esm1"
        },
        {
            "binary_name": "python3-ldns",
            "binary_version": "1.7.0-4.1ubuntu1+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:22.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.7.1-2ubuntu4+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.1-2ubuntu4+esm1

Affected versions

1.*

1.7.1-2build1
1.7.1-2ubuntu1
1.7.1-2ubuntu3
1.7.1-2ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ldnsutils",
            "binary_version": "1.7.1-2ubuntu4+esm1"
        },
        {
            "binary_name": "libldns-dev",
            "binary_version": "1.7.1-2ubuntu4+esm1"
        },
        {
            "binary_name": "libldns3",
            "binary_version": "1.7.1-2ubuntu4+esm1"
        },
        {
            "binary_name": "python3-ldns",
            "binary_version": "1.7.1-2ubuntu4+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}