Medium
catdoc — security advisory
The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
- Products
- catdoc
- Affected versions
- 1:0.95-5, 1:0.95-6, 1:0.95-6~deb12u1
- Fixed versions
- Not specified
- CVEs
- CVE-2018-20453
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:55 UTC · Revision 1
Source evidence
The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
osv:DEBIAN-CVE-2018-20453
catdoc
Fixed versions: Not specified
catdoc
Fixed versions: Not specified
catdoc
Fixed versions: Not specified
Complete source record
{
"id": "7bc03e26c803fe4bf76e92d25adfb7c257c6d904e67d99d5e66c5a440fb124a3",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-20453",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-20453",
"summary": "The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.",
"evidence": "osv:DEBIAN-CVE-2018-20453",
"products": [
{
"name": {
"value": "catdoc",
"evidence": "/affected/0/package/name"
},
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"fixed_versions": [],
"affected_versions": [
{
"value": "1:0.95-5",
"evidence": "/affected/0/versions"
},
{
"value": "1:0.95-6",
"evidence": "/affected/0/versions"
},
{
"value": "1:0.95-6~deb12u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "catdoc",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
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{
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}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2018-20453",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
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"events": [
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"package": {
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"ecosystem": "Debian:12"
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"versions": [
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{
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"package": {
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"ecosystem": "Debian:13"
},
"versions": [
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],
"database_specific": {
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"ecosystem_specific": {
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{
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"package": {
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"purl": "pkg:deb/debian/catdoc?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
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"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-20453.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-23T18:03:56.681859601Z",
"provider": "osv",
"upstream": [
"CVE-2018-20453"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-20453"
]
},
"related_cves": [
{
"value": "CVE-2018-20453",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 422715,
"published_at": "2018-12-25T17:29:00.423+00:00"
}