USN-4718-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4718-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4718-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4718-1
Upstream
Related
Published
2021-02-02T14:09:32.652232Z
Modified
2025-10-13T04:35:20Z
Summary
fastd vulnerability
Details

It was discovered that fastd incorrectly handled certain packets. An attacker could possibly use this issue to cause a denial of service.

References

Affected packages

Ubuntu:16.04:LTS / fastd

Package

Name
fastd
Purl
pkg:deb/ubuntu/fastd@17-4ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
17-4ubuntu0.1

Affected versions

Other

17-4
17-4build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "fastd",
            "binary_version": "17-4ubuntu0.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2020-27638",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:16.04:LTS"
}

Ubuntu:18.04:LTS / fastd

Package

Name
fastd
Purl
pkg:deb/ubuntu/fastd@18-3ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
18-3ubuntu0.18.04.1

Affected versions

Other

18-2
18-2ubuntu1
18-2ubuntu2
18-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "fastd",
            "binary_version": "18-3ubuntu0.18.04.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2020-27638",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}