MediumFix available
clamav — security advisory
clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.
- Products
- clamav
- Affected versions
- Not specified
- Fixed versions
- 0.99.4-r0
- CVEs
- CVE-2018-0202
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:08 UTC · Revision 1
Source evidence
clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.
osv:ALPINE-CVE-2018-0202
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
clamav
Fixed versions: 0.99.4-r0
Complete source record
{
"id": "89e53c98cec66c441f65da893143ac6aad453eaaa00cbd4032d579104cf5f75e",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2018-0202",
"method": "structured",
"payload": {
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"title": "ALPINE-CVE-2018-0202",
"summary": "clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.",
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"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
{
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"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
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"affected": [
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"package": {
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"purl": "pkg:apk/alpine/clamav?arch=source",
"ecosystem": "Alpine:v3.10"
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"database_specific": {
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"purl": "pkg:apk/alpine/clamav?arch=source",
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},
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"package": {
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"ecosystem": "Alpine:v3.8"
},
"database_specific": {
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"package": {
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],
"modified": "2026-10-23T17:23:24.978916289Z",
"provider": "osv",
"upstream": [
"CVE-2018-0202"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-0202"
]
},
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{
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415652,
"published_at": "2018-03-27T09:29:00.387+00:00"
}