USN-8720-1

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Source
https://ubuntu.com/security/notices/USN-8720-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8720-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8720-1
Upstream
Related
Published
2026-09-03T12:55:50Z
Modified
2026-09-03T22:56:56.075624568Z
Summary
gnupg2 vulnerability
Details

It was discovered that GnuPG incorrectly validated authentication tag lengths when parsing CMS messages encrypted with AES-GCM. An attacker could possibly use this issue to bypass message integrity checks.

References

Affected packages

Ubuntu:24.04:LTS / gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.4-2ubuntu17.6

Affected versions

2.*
2.2.40-1.1ubuntu1
2.4.4-2ubuntu7
2.4.4-2ubuntu15
2.4.4-2ubuntu16
2.4.4-2ubuntu17
2.4.4-2ubuntu17.2
2.4.4-2ubuntu17.3
2.4.4-2ubuntu17.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "dirmngr"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gnupg"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gnupg-agent"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gnupg-l10n"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gnupg-utils"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gnupg2"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpg"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpg-agent"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpg-wks-client"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpg-wks-server"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpgconf"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpgsm"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpgv"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpgv-static"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "gpgv-win32"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "keyboxd"
        },
        {
            "binary_version": "2.4.4-2ubuntu17.6",
            "binary_name": "scdaemon"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8720-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-57062",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ]
}

Ubuntu:26.04:LTS / gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.8-4ubuntu3.1

Affected versions

2.*
2.4.8-2ubuntu2
2.4.8-4ubuntu1
2.4.8-4ubuntu2
2.4.8-4ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "dirmngr"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gnupg"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gnupg-agent"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gnupg-l10n"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gnupg-utils"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gnupg2"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpg"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpg-agent"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpg-wks-client"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpg-wks-server"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpgconf"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpgsm"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpgv"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "gpgv-static"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "scdaemon"
        },
        {
            "binary_version": "2.4.8-4ubuntu3.1",
            "binary_name": "tpm2daemon"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8720-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:26.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-57062",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ]
}