HighFix available
thunderbird — security advisory
Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.
- Products
- thunderbird
- Affected versions
- 1:102.11.0-1, 1:102.12.0-1, 1:102.12.0-1~deb10u1, 1:102.12.0-1~deb11u1, 1:102.12.0-1~deb12u1, 1:102.13.0-1, 1:102.13.0-1~deb10u1, 1:102.13.0-1~deb11u1, 1:102.13.0-1~deb12u1, 1:102.13.1-1~deb10u1, 1:102.13.1-1~deb11u1
- Fixed versions
- 1:102.13.1-1, 1:102.13.1-1~deb12u1
- CVEs
- CVE-2023-3417
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:54 UTC · Revision 1
Source evidence
Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.
osv:DEBIAN-CVE-2023-3417
thunderbird
Fixed versions: 1:102.13.1-1~deb12u1
thunderbird
Fixed versions: 1:102.13.1-1
thunderbird
Fixed versions: 1:102.13.1-1
Complete source record
{
"id": "d192ef9fba591ff8315d82b67d447c7197b421a397a6eb809327d617a4b57ac6",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-3417",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-3417",
"summary": "Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1.",
"evidence": "osv:DEBIAN-CVE-2023-3417",
"products": [
{
"name": {
"value": "thunderbird",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:102.13.1-1~deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1:102.11.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.12.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.12.0-1~deb10u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.12.0-1~deb11u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.12.0-1~deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.0-1~deb10u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.0-1~deb11u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.0-1~deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.1-1~deb10u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:102.13.1-1~deb11u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "thunderbird",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:102.13.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "thunderbird",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:102.13.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-3417",
"aliases": [
"DEBIAN-CVE-2023-3417"
],
"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": "1:102.13.1-1~deb12u1"
}
]
}
],
"package": {
"name": "thunderbird",
"purl": "pkg:deb/debian/thunderbird?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:102.11.0-1",
"1:102.12.0-1",
"1:102.12.0-1~deb10u1",
"1:102.12.0-1~deb11u1",
"1:102.12.0-1~deb12u1",
"1:102.13.0-1",
"1:102.13.0-1~deb10u1",
"1:102.13.0-1~deb11u1",
"1:102.13.0-1~deb12u1",
"1:102.13.1-1~deb10u1",
"1:102.13.1-1~deb11u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3417.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:102.13.1-1"
}
]
}
],
"package": {
"name": "thunderbird",
"purl": "pkg:deb/debian/thunderbird?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3417.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:102.13.1-1"
}
]
}
],
"package": {
"name": "thunderbird",
"purl": "pkg:deb/debian/thunderbird?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3417.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:28.959212542Z",
"provider": "osv",
"upstream": [
"CVE-2023-3417"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-3417"
]
},
"related_cves": [
{
"value": "CVE-2023-3417",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456034,
"published_at": "2023-07-24T11:15:09.953+00:00"
}