MediumFix available
qt6-base, qtbase-opensource-src and 1 more products — security advisory
An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.
- Products
- qt6-base, qtbase-opensource-src, qtbase-opensource-src-gles
- Affected versions
- 5.15.10+dfsg-1, 5.15.10+dfsg-2, 5.15.10+dfsg-3, 5.15.10+dfsg-4, 5.15.10+dfsg-5, 5.15.10+dfsg-6, 5.15.12+dfsg-1, 5.15.13+dfsg-1, 5.15.13+dfsg-2, 5.15.15+dfsg-1, 5.15.15+dfsg-2, 5.15.17+dfsg-1, 5.15.17+dfsg-2, 5.15.18+dfsg-1, 5.15.19+dfsg-1, 5.15.19+dfsg-2, 5.15.8+dfsg-3, 5.15.9+dfsg-1
- Fixed versions
- 5.15.10+dfsg-2, 5.15.8+dfsg-11, 6.4.2+dfsg-10
- CVEs
- CVE-2023-33285
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:55 UTC · Revision 1
Source evidence
An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.
osv:DEBIAN-CVE-2023-33285
qt6-base
Fixed versions: 6.4.2+dfsg-10
qt6-base
Fixed versions: 6.4.2+dfsg-10
qt6-base
Fixed versions: 6.4.2+dfsg-10
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-11
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-11
qtbase-opensource-src
Fixed versions: 5.15.8+dfsg-11
qtbase-opensource-src-gles
Fixed versions: Not specified
qtbase-opensource-src-gles
Fixed versions: 5.15.10+dfsg-2
qtbase-opensource-src-gles
Fixed versions: 5.15.10+dfsg-2
Complete source record
{
"id": "942f704e22dc053fbada0b30199ecafd48fdd82f1fb7393a29f5eef6ddcb0a68",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-33285",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-33285",
"summary": "An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.",
"evidence": "osv:DEBIAN-CVE-2023-33285",
"products": [
{
"name": {
"value": "qt6-base",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.4.2+dfsg-10",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qt6-base",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.4.2+dfsg-10",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qt6-base",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.4.2+dfsg-10",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qtbase-opensource-src",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.8+dfsg-11",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qtbase-opensource-src",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.8+dfsg-11",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qtbase-opensource-src",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.8+dfsg-11",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qtbase-opensource-src-gles",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.15.10+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.10+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.10+dfsg-3",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.10+dfsg-4",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.10+dfsg-5",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.10+dfsg-6",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.12+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.13+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.13+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.15+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.15+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.17+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.17+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.18+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.19+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.19+dfsg-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.8+dfsg-3",
"evidence": "/affected/6/versions"
},
{
"value": "5.15.9+dfsg-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "qtbase-opensource-src-gles",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.10+dfsg-2",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qtbase-opensource-src-gles",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.10+dfsg-2",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-33285",
"aliases": [
"DEBIAN-CVE-2023-33285"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.4.2+dfsg-10"
}
]
}
],
"package": {
"name": "qt6-base",
"purl": "pkg:deb/debian/qt6-base?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.4.2+dfsg-10"
}
]
}
],
"package": {
"name": "qt6-base",
"purl": "pkg:deb/debian/qt6-base?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.4.2+dfsg-10"
}
]
}
],
"package": {
"name": "qt6-base",
"purl": "pkg:deb/debian/qt6-base?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.8+dfsg-11"
}
]
}
],
"package": {
"name": "qtbase-opensource-src",
"purl": "pkg:deb/debian/qtbase-opensource-src?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.8+dfsg-11"
}
]
}
],
"package": {
"name": "qtbase-opensource-src",
"purl": "pkg:deb/debian/qtbase-opensource-src?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.8+dfsg-11"
}
]
}
],
"package": {
"name": "qtbase-opensource-src",
"purl": "pkg:deb/debian/qtbase-opensource-src?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "qtbase-opensource-src-gles",
"purl": "pkg:deb/debian/qtbase-opensource-src-gles?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.15.10+dfsg-1",
"5.15.10+dfsg-2",
"5.15.10+dfsg-3",
"5.15.10+dfsg-4",
"5.15.10+dfsg-5",
"5.15.10+dfsg-6",
"5.15.12+dfsg-1",
"5.15.13+dfsg-1",
"5.15.13+dfsg-2",
"5.15.15+dfsg-1",
"5.15.15+dfsg-2",
"5.15.17+dfsg-1",
"5.15.17+dfsg-2",
"5.15.18+dfsg-1",
"5.15.19+dfsg-1",
"5.15.19+dfsg-2",
"5.15.8+dfsg-3",
"5.15.9+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.10+dfsg-2"
}
]
}
],
"package": {
"name": "qtbase-opensource-src-gles",
"purl": "pkg:deb/debian/qtbase-opensource-src-gles?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.10+dfsg-2"
}
]
}
],
"package": {
"name": "qtbase-opensource-src-gles",
"purl": "pkg:deb/debian/qtbase-opensource-src-gles?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-33285.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:29.258275278Z",
"provider": "osv",
"upstream": [
"CVE-2023-33285"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-33285"
]
},
"related_cves": [
{
"value": "CVE-2023-33285",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456057,
"published_at": "2023-05-22T03:15:09.72+00:00"
}