MediumFix available
ghostscript — security advisory
Ghostscript GhostPDL 9.50 through 9.54.0 has a heap-based buffer overflow in sampled_data_finish (called from sampled_data_continue and interp).
- Products
- ghostscript
- Affected versions
- 9.16~dfsg~0-0ubuntu3, 9.16~dfsg~0-0ubuntu4, 9.18~dfsg~0-0ubuntu1, 9.18~dfsg~0-0ubuntu2, 9.18~dfsg~0-0ubuntu2.2, 9.18~dfsg~0-0ubuntu2.3, 9.18~dfsg~0-0ubuntu2.4, 9.18~dfsg~0-0ubuntu2.6, 9.18~dfsg~0-0ubuntu2.7, 9.18~dfsg~0-0ubuntu2.8, 9.18~dfsg~0-0ubuntu2.9, 9.21~dfsg+1-0ubuntu3, 9.22~dfsg+1-0ubuntu1, 9.22~dfsg+1-0ubuntu1.1, 9.22~dfsg+1-0ubuntu1.2, 9.25~dfsg+1-0ubuntu0.16.04.1, 9.25~dfsg+1-0ubuntu0.16.04.2, 9.25~dfsg+1-0ubuntu0.16.04.3, 9.25~dfsg+1-0ubuntu0.18.04.1, 9.25~dfsg+1-0ubuntu0.18.04.2, 9.26~dfsg+0-0ubuntu0.16.04.1, 9.26~dfsg+0-0ubuntu0.16.04.10, 9.26~dfsg+0-0ubuntu0.16.04.11, 9.26~dfsg+0-0ubuntu0.16.04.12, 9.26~dfsg+0-0ubuntu0.16.04.13, 9.26~dfsg+0-0ubuntu0.16.04.14, 9.26~dfsg+0-0ubuntu0.16.04.3, 9.26~dfsg+0-0ubuntu0.16.04.4, 9.26~dfsg+0-0ubuntu0.16.04.5, 9.26~dfsg+0-0ubuntu0.16.04.6, 9.26~dfsg+0-0ubuntu0.16.04.7, 9.26~dfsg+0-0ubuntu0.16.04.8, 9.26~dfsg+0-0ubuntu0.16.04.9, 9.26~dfsg+0-0ubuntu0.18.04.1, 9.26~dfsg+0-0ubuntu0.18.04.10, 9.26~dfsg+0-0ubuntu0.18.04.11, 9.26~dfsg+0-0ubuntu0.18.04.12, 9.26~dfsg+0-0ubuntu0.18.04.13, 9.26~dfsg+0-0ubuntu0.18.04.14, 9.26~dfsg+0-0ubuntu0.18.04.3, 9.26~dfsg+0-0ubuntu0.18.04.4, 9.26~dfsg+0-0ubuntu0.18.04.5, 9.26~dfsg+0-0ubuntu0.18.04.6, 9.26~dfsg+0-0ubuntu0.18.04.7, 9.26~dfsg+0-0ubuntu0.18.04.8, 9.26~dfsg+0-0ubuntu0.18.04.9, 9.27~dfsg+0-0ubuntu3, 9.27~dfsg+0-0ubuntu4, 9.50~dfsg-5ubuntu1, 9.50~dfsg-5ubuntu2, 9.50~dfsg-5ubuntu3, 9.50~dfsg-5ubuntu4, 9.50~dfsg-5ubuntu4.1, 9.50~dfsg-5ubuntu4.2, 9.50~dfsg-5ubuntu4.3, 9.50~dfsg-5ubuntu4.4
- Fixed versions
- 9.26~dfsg+0-0ubuntu0.16.04.14+esm1, 9.26~dfsg+0-0ubuntu0.18.04.15, 9.50~dfsg-5ubuntu4.5
- CVEs
- CVE-2021-45949
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:04 UTC · Revision 1
Source evidence
Ghostscript GhostPDL 9.50 through 9.54.0 has a heap-based buffer overflow in sampled_data_finish (called from sampled_data_continue and interp).
osv:UBUNTU-CVE-2021-45949
ghostscript
Fixed versions: 9.26~dfsg+0-0ubuntu0.16.04.14+esm1
ghostscript
Fixed versions: 9.26~dfsg+0-0ubuntu0.18.04.15
ghostscript
Fixed versions: 9.50~dfsg-5ubuntu4.5
Complete source record
{
"id": "ff2f0c9855e52e1ebc46c899d4b9ff13231df9f65d5b5594a0003fd794c10f7a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-45949",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2021-45949",
"summary": "Ghostscript GhostPDL 9.50 through 9.54.0 has a heap-based buffer overflow in sampled_data_finish (called from sampled_data_continue and interp).",
"evidence": "osv:UBUNTU-CVE-2021-45949",
"products": [
{
"name": {
"value": "ghostscript",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "9.16~dfsg~0-0ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "9.16~dfsg~0-0ubuntu4",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.2",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.3",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.4",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.6",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.7",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.8",
"evidence": "/affected/0/versions"
},
{
"value": "9.18~dfsg~0-0ubuntu2.9",
"evidence": "/affected/0/versions"
},
{
"value": "9.25~dfsg+1-0ubuntu0.16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "9.25~dfsg+1-0ubuntu0.16.04.2",
"evidence": "/affected/0/versions"
},
{
"value": "9.25~dfsg+1-0ubuntu0.16.04.3",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.1",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.3",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.4",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.5",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.6",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.7",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.8",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.9",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.10",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.11",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.12",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.13",
"evidence": "/affected/0/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.16.04.14",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "ghostscript",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.15",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "9.21~dfsg+1-0ubuntu3",
"evidence": "/affected/1/versions"
},
{
"value": "9.22~dfsg+1-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "9.22~dfsg+1-0ubuntu1.1",
"evidence": "/affected/1/versions"
},
{
"value": "9.22~dfsg+1-0ubuntu1.2",
"evidence": "/affected/1/versions"
},
{
"value": "9.25~dfsg+1-0ubuntu0.18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "9.25~dfsg+1-0ubuntu0.18.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.4",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.5",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.6",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.7",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.8",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.9",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.10",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.11",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.12",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.13",
"evidence": "/affected/1/versions"
},
{
"value": "9.26~dfsg+0-0ubuntu0.18.04.14",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "ghostscript",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.50~dfsg-5ubuntu4.5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "9.27~dfsg+0-0ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "9.27~dfsg+0-0ubuntu4",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu4",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu4.1",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu4.2",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu4.3",
"evidence": "/affected/2/versions"
},
{
"value": "9.50~dfsg-5ubuntu4.4",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2021-45949",
"aliases": [
"UBUNTU-CVE-2021-45949"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1"
}
]
}
],
"package": {
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript?arch=source&distro=esm-infra%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"9.16~dfsg~0-0ubuntu3",
"9.16~dfsg~0-0ubuntu4",
"9.18~dfsg~0-0ubuntu1",
"9.18~dfsg~0-0ubuntu2",
"9.18~dfsg~0-0ubuntu2.2",
"9.18~dfsg~0-0ubuntu2.3",
"9.18~dfsg~0-0ubuntu2.4",
"9.18~dfsg~0-0ubuntu2.6",
"9.18~dfsg~0-0ubuntu2.7",
"9.18~dfsg~0-0ubuntu2.8",
"9.18~dfsg~0-0ubuntu2.9",
"9.25~dfsg+1-0ubuntu0.16.04.1",
"9.25~dfsg+1-0ubuntu0.16.04.2",
"9.25~dfsg+1-0ubuntu0.16.04.3",
"9.26~dfsg+0-0ubuntu0.16.04.1",
"9.26~dfsg+0-0ubuntu0.16.04.3",
"9.26~dfsg+0-0ubuntu0.16.04.4",
"9.26~dfsg+0-0ubuntu0.16.04.5",
"9.26~dfsg+0-0ubuntu0.16.04.6",
"9.26~dfsg+0-0ubuntu0.16.04.7",
"9.26~dfsg+0-0ubuntu0.16.04.8",
"9.26~dfsg+0-0ubuntu0.16.04.9",
"9.26~dfsg+0-0ubuntu0.16.04.10",
"9.26~dfsg+0-0ubuntu0.16.04.11",
"9.26~dfsg+0-0ubuntu0.16.04.12",
"9.26~dfsg+0-0ubuntu0.16.04.13",
"9.26~dfsg+0-0ubuntu0.16.04.14"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45949.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1"
},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.26~dfsg+0-0ubuntu0.16.04.14+esm1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.26~dfsg+0-0ubuntu0.18.04.15"
}
]
}
],
"package": {
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"9.21~dfsg+1-0ubuntu3",
"9.22~dfsg+1-0ubuntu1",
"9.22~dfsg+1-0ubuntu1.1",
"9.22~dfsg+1-0ubuntu1.2",
"9.25~dfsg+1-0ubuntu0.18.04.1",
"9.25~dfsg+1-0ubuntu0.18.04.2",
"9.26~dfsg+0-0ubuntu0.18.04.1",
"9.26~dfsg+0-0ubuntu0.18.04.3",
"9.26~dfsg+0-0ubuntu0.18.04.4",
"9.26~dfsg+0-0ubuntu0.18.04.5",
"9.26~dfsg+0-0ubuntu0.18.04.6",
"9.26~dfsg+0-0ubuntu0.18.04.7",
"9.26~dfsg+0-0ubuntu0.18.04.8",
"9.26~dfsg+0-0ubuntu0.18.04.9",
"9.26~dfsg+0-0ubuntu0.18.04.10",
"9.26~dfsg+0-0ubuntu0.18.04.11",
"9.26~dfsg+0-0ubuntu0.18.04.12",
"9.26~dfsg+0-0ubuntu0.18.04.13",
"9.26~dfsg+0-0ubuntu0.18.04.14"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45949.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.15"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.15"
},
{
"binary_name": "libgs9",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.15"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.26~dfsg+0-0ubuntu0.18.04.15"
}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.50~dfsg-5ubuntu4.5"
}
]
}
],
"package": {
"name": "ghostscript",
"purl": "pkg:deb/ubuntu/ghostscript?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"9.27~dfsg+0-0ubuntu3",
"9.27~dfsg+0-0ubuntu4",
"9.50~dfsg-5ubuntu1",
"9.50~dfsg-5ubuntu2",
"9.50~dfsg-5ubuntu3",
"9.50~dfsg-5ubuntu4",
"9.50~dfsg-5ubuntu4.1",
"9.50~dfsg-5ubuntu4.2",
"9.50~dfsg-5ubuntu4.3",
"9.50~dfsg-5ubuntu4.4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45949.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ghostscript",
"binary_version": "9.50~dfsg-5ubuntu4.5"
},
{
"binary_name": "ghostscript-x",
"binary_version": "9.50~dfsg-5ubuntu4.5"
},
{
"binary_name": "libgs9",
"binary_version": "9.50~dfsg-5ubuntu4.5"
},
{
"binary_name": "libgs9-common",
"binary_version": "9.50~dfsg-5ubuntu4.5"
}
],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-08T19:46:20.980171140Z",
"provider": "osv",
"upstream": [
"CVE-2021-45949"
],
"references": [
"https://ubuntu.com/security/CVE-2021-45949",
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ghostscript/OSV-2021-803.yaml",
"https://ubuntu.com/security/notices/USN-5224-1",
"https://ubuntu.com/security/notices/USN-5224-2",
"https://www.cve.org/CVERecord?id=CVE-2021-45949"
]
},
"related_cves": [
{
"value": "CVE-2021-45949",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 104510,
"published_at": "2022-01-01T00:15:00+00:00"
}