USN-4938-1

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Source
https://ubuntu.com/security/notices/USN-4938-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4938-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4938-1
Upstream
Related
Published
2021-05-06T12:58:29.699754Z
Modified
2025-09-08T16:37:01Z
Summary
unbound vulnerabilities
Details

It was discovered that Unbound contained multiple security issues. A remote attacker could possibly use these issues to cause a denial of service, inject arbitrary commands, execute arbitrary code, and overwrite local files.

References

Affected packages

Ubuntu:18.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound@1.6.7-1ubuntu2.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.7-1ubuntu2.4

Affected versions

1.*

1.6.5-1
1.6.7-1
1.6.7-1build1
1.6.7-1ubuntu1
1.6.7-1ubuntu2
1.6.7-1ubuntu2.1
1.6.7-1ubuntu2.2
1.6.7-1ubuntu2.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libunbound-dev",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "libunbound2",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "python-unbound",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "python3-unbound",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "unbound",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "unbound-anchor",
            "binary_version": "1.6.7-1ubuntu2.4"
        },
        {
            "binary_name": "unbound-host",
            "binary_version": "1.6.7-1ubuntu2.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound@1.9.4-2ubuntu1.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.4-2ubuntu1.2

Affected versions

1.*

1.9.0-2ubuntu1
1.9.0-2ubuntu2
1.9.4-2
1.9.4-2ubuntu1
1.9.4-2ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libunbound-dev",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "libunbound8",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "python-unbound",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "python3-unbound",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "unbound",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "unbound-anchor",
            "binary_version": "1.9.4-2ubuntu1.2"
        },
        {
            "binary_name": "unbound-host",
            "binary_version": "1.9.4-2ubuntu1.2"
        }
    ],
    "availability": "No subscription required"
}