UnratedFix available
claws-mail, libytnef — security advisory
Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a buffer overflow.
- Products
- claws-mail, libytnef
- Affected versions
- Not specified
- Fixed versions
- 1.5-5, 3.11.1-2
- CVEs
- CVE-2010-5109
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:07 UTC · Revision 1
Source evidence
Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a buffer overflow.
osv:DEBIAN-CVE-2010-5109
claws-mail
Fixed versions: 3.11.1-2
claws-mail
Fixed versions: 3.11.1-2
claws-mail
Fixed versions: 3.11.1-2
libytnef
Fixed versions: 1.5-5
libytnef
Fixed versions: 1.5-5
libytnef
Fixed versions: 1.5-5
Complete source record
{
"id": "fba3429b5beabc2afc99c4d4ce4e5402f1bc1c82b900f7acfd565d28414e2cd0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2010-5109",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2010-5109",
"summary": "Off-by-one error in the DecompressRTF function in ytnef.c in Yerase's TNEF Stream Reader allows remote attackers to cause a denial of service (crash) via a crafted TNEF file, which triggers a buffer overflow.",
"evidence": "osv:DEBIAN-CVE-2010-5109",
"products": [
{
"name": {
"value": "claws-mail",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.11.1-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "claws-mail",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.11.1-2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "claws-mail",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.11.1-2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libytnef",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5-5",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libytnef",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5-5",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libytnef",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.5-5",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2010-5109",
"aliases": [
"DEBIAN-CVE-2010-5109"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.1-2"
}
]
}
],
"package": {
"name": "claws-mail",
"purl": "pkg:deb/debian/claws-mail?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.1-2"
}
]
}
],
"package": {
"name": "claws-mail",
"purl": "pkg:deb/debian/claws-mail?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.1-2"
}
]
}
],
"package": {
"name": "claws-mail",
"purl": "pkg:deb/debian/claws-mail?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5-5"
}
]
}
],
"package": {
"name": "libytnef",
"purl": "pkg:deb/debian/libytnef?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5-5"
}
]
}
],
"package": {
"name": "libytnef",
"purl": "pkg:deb/debian/libytnef?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "low"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5-5"
}
]
}
],
"package": {
"name": "libytnef",
"purl": "pkg:deb/debian/libytnef?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2010-5109.json"
},
"ecosystem_specific": {
"urgency": "low"
}
}
],
"modified": "2026-10-23T17:47:35.006274700Z",
"provider": "osv",
"upstream": [
"CVE-2010-5109"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2010-5109"
]
},
"related_cves": [
{
"value": "CVE-2010-5109",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 417753,
"published_at": "2014-05-05T17:06:02.873+00:00"
}