usn-3675-1
Vulnerability from osv_ubuntu
Published
2018-06-11 21:53
Modified
2026-04-27 14:11
Summary
gnupg, gnupg2 vulnerabilities
Details
Marcus Brinkmann discovered that during decryption or verification, GnuPG did not properly filter out terminal sequences when reporting the original filename. An attacker could use this to specially craft a file that would cause an application parsing GnuPG output to incorrectly interpret the status of the cryptographic operation reported by GnuPG. (CVE-2018-12020)
Lance Vick discovered that GnuPG did not enforce configurations where key certification required an offline primary Certify key. An attacker with access to a signing subkey could generate certifications that appeared to be valid. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-9234)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2018-12020",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gnupg",
"binary_version": "1.4.16-1ubuntu2.5"
},
{
"binary_name": "gnupg-curl",
"binary_version": "1.4.16-1ubuntu2.5"
},
{
"binary_name": "gpgv",
"binary_version": "1.4.16-1ubuntu2.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "gnupg",
"purl": "pkg:deb/ubuntu/gnupg@1.4.16-1ubuntu2.5?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.16-1ubuntu2.5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.14-1ubuntu2",
"1.4.15-1.1ubuntu1",
"1.4.15-1.1ubuntu2",
"1.4.15-2ubuntu1",
"1.4.16-1ubuntu1",
"1.4.16-1ubuntu2",
"1.4.16-1ubuntu2.1",
"1.4.16-1ubuntu2.3",
"1.4.16-1ubuntu2.4"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2018-12020",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gnupg",
"binary_version": "1.4.20-1ubuntu3.2"
},
{
"binary_name": "gnupg-curl",
"binary_version": "1.4.20-1ubuntu3.2"
},
{
"binary_name": "gpgv",
"binary_version": "1.4.20-1ubuntu3.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "gnupg",
"purl": "pkg:deb/ubuntu/gnupg@1.4.20-1ubuntu3.2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.20-1ubuntu3.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.18-7ubuntu1",
"1.4.19-6ubuntu1",
"1.4.20-1ubuntu1",
"1.4.20-1ubuntu2",
"1.4.20-1ubuntu3",
"1.4.20-1ubuntu3.1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2018-9234",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2018-12020",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "dirmngr",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gnupg",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gnupg-agent",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gnupg-l10n",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gnupg-utils",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gnupg2",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpg",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpg-agent",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpg-wks-client",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpg-wks-server",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgconf",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgsm",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgv",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgv-static",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgv-win32",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "gpgv2",
"binary_version": "2.2.4-1ubuntu1.1"
},
{
"binary_name": "scdaemon",
"binary_version": "2.2.4-1ubuntu1.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "gnupg2",
"purl": "pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.4-1ubuntu1.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.15-1ubuntu8",
"2.2.4-1ubuntu1"
]
}
],
"aliases": [],
"details": "Marcus Brinkmann discovered that during decryption or verification,\nGnuPG did not properly filter out terminal sequences when reporting the\noriginal filename. An attacker could use this to specially craft a file\nthat would cause an application parsing GnuPG output to incorrectly\ninterpret the status of the cryptographic operation reported by GnuPG.\n(CVE-2018-12020)\n\nLance Vick discovered that GnuPG did not enforce configurations where\nkey certification required an offline primary Certify key. An attacker\nwith access to a signing subkey could generate certifications that\nappeared to be valid. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2018-9234)\n",
"id": "USN-3675-1",
"modified": "2026-04-27T14:11:23Z",
"published": "2018-06-11T21:53:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3675-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-9234"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-12020"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "gnupg, gnupg2 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2018-9234",
"UBUNTU-CVE-2018-12020"
]
}
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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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