HighFix available
gnupg1, gnupg2 — security advisory
mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
- Products
- gnupg1, gnupg2
- Affected versions
- Not specified
- Fixed versions
- 1.4.22-5, 2.2.8-1
- CVEs
- CVE-2018-12020
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:06 UTC · Revision 1
Source evidence
mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
osv:DEBIAN-CVE-2018-12020
gnupg1
Fixed versions: 1.4.22-5
gnupg1
Fixed versions: 1.4.22-5
gnupg1
Fixed versions: 1.4.22-5
gnupg2
Fixed versions: 2.2.8-1
gnupg2
Fixed versions: 2.2.8-1
gnupg2
Fixed versions: 2.2.8-1
Complete source record
{
"id": "ef9f50d56436390ba915776f288256022268faea05ae8691d1fb6f1d89673354",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-12020",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-12020",
"summary": "mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the \"--status-fd 2\" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.",
"evidence": "osv:DEBIAN-CVE-2018-12020",
"products": [
{
"name": {
"value": "gnupg1",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.22-5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gnupg1",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.22-5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gnupg1",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.22-5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gnupg2",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.2.8-1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gnupg2",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.2.8-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gnupg2",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.2.8-1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-12020",
"aliases": [
"DEBIAN-CVE-2018-12020"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.22-5"
}
]
}
],
"package": {
"name": "gnupg1",
"purl": "pkg:deb/debian/gnupg1?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.22-5"
}
]
}
],
"package": {
"name": "gnupg1",
"purl": "pkg:deb/debian/gnupg1?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.22-5"
}
]
}
],
"package": {
"name": "gnupg1",
"purl": "pkg:deb/debian/gnupg1?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.8-1"
}
]
}
],
"package": {
"name": "gnupg2",
"purl": "pkg:deb/debian/gnupg2?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.8-1"
}
]
}
],
"package": {
"name": "gnupg2",
"purl": "pkg:deb/debian/gnupg2?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.8-1"
}
]
}
],
"package": {
"name": "gnupg2",
"purl": "pkg:deb/debian/gnupg2?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12020.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:58.650712092Z",
"provider": "osv",
"upstream": [
"CVE-2018-12020"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-12020"
]
},
"related_cves": [
{
"value": "CVE-2018-12020",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419981,
"published_at": "2018-06-08T21:29:00.237+00:00"
}