UBUNTU-CVE-2025-30258

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Source
https://ubuntu.com/security/CVE-2025-30258
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30258.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-30258
Upstream
Downstream
Related
Published
2025-03-19T20:15:00Z
Modified
2025-10-24T05:18:10Z
Severity
  • 2.7 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L CVSS Calculator
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

References

Affected packages

Ubuntu:18.04:LTS

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.6?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*

2.1.15-1ubuntu8
2.2.4-1ubuntu1
2.2.4-1ubuntu1.1
2.2.4-1ubuntu1.2
2.2.4-1ubuntu1.3
2.2.4-1ubuntu1.4
2.2.4-1ubuntu1.5
2.2.4-1ubuntu1.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "gpgv2",
            "binary_version": "2.2.4-1ubuntu1.6"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.2.4-1ubuntu1.6"
        }
    ]
}

Ubuntu:20.04:LTS

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.2.19-3ubuntu2.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.19-3ubuntu2.4

Affected versions

2.*

2.2.12-1ubuntu3
2.2.17-3ubuntu1
2.2.19-3ubuntu2
2.2.19-3ubuntu2.1
2.2.19-3ubuntu2.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "gpgv2",
            "binary_version": "2.2.19-3ubuntu2.4"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.2.19-3ubuntu2.4"
        }
    ]
}

Ubuntu:22.04:LTS

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.2.27-3ubuntu2.3?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.27-3ubuntu2.3

Affected versions

2.*

2.2.20-1ubuntu4
2.2.27-2ubuntu1
2.2.27-3ubuntu1
2.2.27-3ubuntu2
2.2.27-3ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "gpgv2",
            "binary_version": "2.2.27-3ubuntu2.3"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.2.27-3ubuntu2.3"
        }
    ]
}

Ubuntu:24.04:LTS

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu17.2?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*

2.2.40-1.1ubuntu1
2.4.4-2ubuntu7
2.4.4-2ubuntu15
2.4.4-2ubuntu16
2.4.4-2ubuntu17

Ecosystem specific 

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

Ubuntu:25.04

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu23?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.4-2ubuntu23

Affected versions

2.*

2.4.4-2ubuntu18
2.4.4-2ubuntu20
2.4.4-2ubuntu21
2.4.4-2ubuntu22

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "keyboxd",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.4.4-2ubuntu23"
        }
    ]
}

Ubuntu:25.10

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu23?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.4-2ubuntu23

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "keyboxd",
            "binary_version": "2.4.4-2ubuntu23"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.4.4-2ubuntu23"
        }
    ]
}

Ubuntu:Pro:16.04:LTS

gnupg2

Package

Name
gnupg2
Purl
pkg:deb/ubuntu/gnupg2@2.1.11-6ubuntu2.1+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

2.*

2.0.28-3ubuntu1
2.0.28-3ubuntu2
2.1.11-6ubuntu1
2.1.11-6ubuntu2
2.1.11-6ubuntu2.1
2.1.11-6ubuntu2.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        },
        {
            "binary_name": "gpgv2",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.1.11-6ubuntu2.1+esm1"
        }
    ]
}