UBUNTU-CVE-2021-20286

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Source
https://ubuntu.com/security/CVE-2021-20286
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20286.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-20286
Upstream
Published
2021-03-15T18:15:00Z
Modified
2025-10-24T04:50:05Z
Severity
  • 2.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in libnbd 1.7.3. An assertion failure in nbdunlockedopt_go in ilb/opt.c may lead to denial of service.

References

Affected packages

Ubuntu:20.04:LTS / libnbd

Package

Name
libnbd
Purl
pkg:deb/ubuntu/libnbd@1.2.2-1ubuntu2?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*

1.0.3-1
1.2.1-2
1.2.2-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "libnbd-dev"
        },
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "libnbd-ocaml"
        },
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "libnbd-ocaml-dev"
        },
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "libnbd0"
        },
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "nbdfuse"
        },
        {
            "binary_version": "1.2.2-1ubuntu2",
            "binary_name": "python3-libnbd"
        }
    ]
}