High
Security advisory
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-19648
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:39 UTC · Revision 1
Source evidence
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
osv:CVE-2019-19648
Complete source record
{
"id": "46030a1ca3a091fe9b5fb88c9a1c5a7e33b5bf527de57838d16c187bf5911c7c",
"url": "https://osv.dev/vulnerability/CVE-2019-19648",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-19648",
"summary": "In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.",
"evidence": "osv:CVE-2019-19648",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-19648",
"aliases": [
"CVE-2019-19648"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/virustotal/yara",
"type": "GIT",
"events": [
{
"introduced": "b9f925bb4e2b998bd6bb2f2e3cc2087c62fdd5b9"
},
{
"last_affected": "b9f925bb4e2b998bd6bb2f2e3cc2087c62fdd5b9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:virustotal:yara:3.11.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.11.0"
},
{
"last_affected": "3.11.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.11.0",
"v3.11.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19648.json"
}
}
],
"modified": "2026-10-20T10:50:52.067059294Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FKNXSH5ERG6NELTXCYVJLUPJJJ2TNEBD/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXM224OLGI6KAOROLDPPGGCZ2OQVQ6HH/",
"https://github.com/VirusTotal/yara/issues/1178"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "33"
},
{
"last_affected": "33"
},
{
"introduced": "34"
},
{
"last_affected": "34"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-19648",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382275,
"published_at": "2019-12-09T01:15:10.357+00:00"
}