High
Security advisory
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-4300
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:09 UTC · Revision 1
Source evidence
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
osv:CVE-2016-4300
Complete source record
{
"id": "1af3f96f188dfedce53cb27e24d75a158b6f57d3d5d94fe5577f1bcb6d60efa2",
"url": "https://osv.dev/vulnerability/CVE-2016-4300",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-4300",
"summary": "Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.",
"evidence": "osv:CVE-2016-4300",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-4300",
"aliases": [
"CVE-2016-4300"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libarchive/libarchive",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "167e97be1d35c1e0947d768adbf94712244aad6b"
},
{
"fixed": "e79ef306afe332faf22e9b442a2c6b59cb175573"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "3.2.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "e79ef306afe332faf22e9b442a2c6b59cb175573"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"v3.2.0",
"v3.1.900a",
"v3.0.1b",
"v3.0.0a"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4300.json",
"vanir_signatures": [
{
"id": "CVE-2016-4300-15650bc9",
"digest": {
"length": 2649,
"function_hash": "46239902704382672067472777073698420896"
},
"source": "https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573",
"target": {
"file": "libarchive/archive_read_support_format_7zip.c",
"function": "read_SubStreamsInfo"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2016-4300-dee1363a",
"digest": {
"threshold": 0.9,
"line_hashes": [
"114121825398685049637523548521724163081",
"158255184811572789911284109468266521732",
"335493315037050148892950470981890599307",
"209098857150887945768214746267601235406"
]
},
"source": "https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573",
"target": {
"file": "libarchive/archive_read_support_format_7zip.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:12:45Z"
}
}
],
"modified": "2026-10-20T13:12:45.091965076Z",
"provider": "osv",
"references": [
"https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00062&languageid=en-fr",
"https://security.gentoo.org/glsa/201701-03",
"https://bugzilla.redhat.com/show_bug.cgi?id=1348439",
"https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573",
"https://github.com/libarchive/libarchive/issues/718"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_desktop",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_hpc_node",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_hpc_node_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_aus",
"extracted_events": [
{
"range": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_server_eus",
"extracted_events": [
{
"range": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux_workstation",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-4300",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387306,
"published_at": "2016-09-21T14:25:01.94+00:00"
}