USN-6121-1

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Source
https://ubuntu.com/security/notices/USN-6121-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6121-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-6121-1
Upstream
Related
Published
2023-05-30T16:09:29.547041Z
Modified
2025-10-13T04:36:26Z
Summary
nanopb vulnerabilities
Details

It was discovered that Nanopb incorrectly handled certain decode messages. An attacker could possibly use this cause a denial of service or expose sensitive information. (CVE-2020-26243)

It was discovered that Nanopb incorrectly handled certain decode messages. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2021-21401)

References

Affected packages

Ubuntu:Pro:20.04:LTS / nanopb

Package

Name
nanopb
Purl
pkg:deb/ubuntu/nanopb@0.4.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.4.1-1ubuntu0.1~esm1

Affected versions

0.*

0.4.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.1-1ubuntu0.1~esm1",
            "binary_name": "libnanopb-dev"
        },
        {
            "binary_version": "0.4.1-1ubuntu0.1~esm1",
            "binary_name": "nanopb"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-26243"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-21401"
        }
    ]
}