USN-5257-2

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Source
https://ubuntu.com/security/notices/USN-5257-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5257-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5257-2
Upstream
Related
Published
2022-10-04T22:57:36.169207Z
Modified
2025-10-13T04:35:44Z
Summary
ldns vulnerabilities
Details

USN-5257-1 fixed several vulnerabilities in ldns. This update provides the corresponding update for Ubuntu 20.04 ESM and Ubuntu 22.04 ESM.

Original advisory details:

It was discovered that ldns incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-19860, CVE-2020-19861)

References

Affected packages

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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "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"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-19860",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2020-19861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "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"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:22.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-19860",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2020-19861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}