ubuntu-cve-2025-30258
Vulnerability from osv_ubuntu
Published
2025-03-19 20:15
Modified
2026-01-20 05:27
Summary
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."
Severity
4.7 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
},
{
"binary_name": "gnupg2",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
},
{
"binary_name": "gpgsm",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
},
{
"binary_name": "gpgv2",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
},
{
"binary_name": "scdaemon",
"binary_version": "2.1.11-6ubuntu2.1+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.1.11-6ubuntu2.1+esm2?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.11-6ubuntu2.1+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gnupg",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gnupg-l10n",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gnupg-utils",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gnupg2",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpg",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpg-agent",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpg-wks-client",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpg-wks-server",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgconf",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgsm",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgv",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgv-static",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgv-win32",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "gpgv2",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
},
{
"binary_name": "scdaemon",
"binary_version": "2.2.4-1ubuntu1.6+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.6+esm1?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.4-1ubuntu1.6+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": {
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.2.19-3ubuntu2.4?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.19-3ubuntu2.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "2.2.27-3ubuntu2.3"
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.2.27-3ubuntu2.3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.27-3ubuntu2.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "2.4.4-2ubuntu17.2"
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu17.2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4-2ubuntu17.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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": "2.4.4-2ubuntu23"
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.4.4-2ubuntu23?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4-2ubuntu23"
}
],
"type": "ECOSYSTEM"
}
],
"versions": []
}
],
"aliases": [],
"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.\"",
"id": "UBUNTU-CVE-2025-30258",
"modified": "2026-01-20T05:27:24Z",
"published": "2025-03-19T20:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-30258"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-30258"
},
{
"type": "REPORT",
"url": "https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7412-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7412-3"
}
],
"related": [
"USN-7412-1",
"USN-7412-3"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-30258"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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