UBUNTU-CVE-2020-12244

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Source
https://ubuntu.com/security/CVE-2020-12244
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12244.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-12244
Upstream
Published
2020-05-19T12:00:00Z
Modified
2025-09-08T16:46:05Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.

References

Affected packages

Ubuntu:Pro:16.04:LTS / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor@4.0.0~alpha2-2ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

3.*

3.7.3-1

4.*

4.0.0~alpha1-1
4.0.0~alpha1-2
4.0.0~alpha2-2
4.0.0~alpha2-2ubuntu0.1
4.0.0~alpha2-2ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.0~alpha2-2ubuntu0.1+esm1",
            "binary_name": "pdns-recursor"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor@4.1.1-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

4.*

4.0.6-1
4.0.6-1build1
4.0.7-1
4.1.1-1
4.1.1-1build1
4.1.1-2
4.1.1-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.1.1-2ubuntu0.1~esm1",
            "binary_name": "pdns-recursor"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor@4.2.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

4.*

4.2.0-6
4.2.1-1
4.2.1-1build1
4.2.1-1build2
4.2.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.2.1-1ubuntu0.1~esm1",
            "binary_name": "pdns-recursor"
        }
    ]
}