libpodofo — security advisory
An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.
- Products
- libpodofo
- Affected versions
- Not specified
- Fixed versions
- 0.9.6+dfsg-4
- CVEs
- CVE-2018-20751
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:12 UTC · Revision 1
Source evidence
An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.
osv:DEBIAN-CVE-2018-20751
libpodofo
Fixed versions: 0.9.6+dfsg-4
libpodofo
Fixed versions: 0.9.6+dfsg-4
libpodofo
Fixed versions: 0.9.6+dfsg-4
Complete source record
{
"id": "778c13f9f9a60e125b8172b5d24f4e46efd09c9702f2548be8aa3e12c1ecec36",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-20751",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-20751",
"summary": "An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName(\"MediaBox\"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.",
"evidence": "osv:DEBIAN-CVE-2018-20751",
"products": [
{
"name": {
"value": "libpodofo",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.6+dfsg-4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libpodofo",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.6+dfsg-4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libpodofo",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.9.6+dfsg-4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-20751",
"aliases": [
"DEBIAN-CVE-2018-20751"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.6+dfsg-4"
}
]
}
],
"package": {
"name": "libpodofo",
"purl": "pkg:deb/debian/libpodofo?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-20751.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.6+dfsg-4"
}
]
}
],
"package": {
"name": "libpodofo",
"purl": "pkg:deb/debian/libpodofo?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-20751.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.6+dfsg-4"
}
]
}
],
"package": {
"name": "libpodofo",
"purl": "pkg:deb/debian/libpodofo?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-20751.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:05.269933360Z",
"provider": "osv",
"upstream": [
"CVE-2018-20751"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-20751"
]
},
"related_cves": [
{
"value": "CVE-2018-20751",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 420364,
"published_at": "2019-02-04T19:29:00.24+00:00"
}