High
Security advisory
The SMB parser in tcpdump before 4.9.3 has buffer over-reads in print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-16451
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:25 UTC · Revision 1
Source evidence
The SMB parser in tcpdump before 4.9.3 has buffer over-reads in print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.
osv:CVE-2018-16451
Complete source record
{
"id": "1141d0ab7bc9f9a08b75d1d7edad4053cc2d30f61b8abe2b550d2f2ef9c29a88",
"url": "https://osv.dev/vulnerability/CVE-2018-16451",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-16451",
"summary": "The SMB parser in tcpdump before 4.9.3 has buffer over-reads in print-smb.c:print_trans() for \\MAILSLOT\\BROWSE and \\PIPE\\LANMAN.",
"evidence": "osv:CVE-2018-16451",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-16451",
"aliases": [
"CVE-2018-16451"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/the-tcpdump-group/tcpdump",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "d9a693b043262f1999ee7aba28acadfd0f77cc38"
},
{
"fixed": "96480ab95308cd9234b4f09b175ebf60e17792c6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "4.9.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "96480ab95308cd9234b4f09b175ebf60e17792c6"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"tcpdump-4.9.2",
"tcpdump-4.9.1",
"tcpdump-4.9.0",
"tcpdump-4.9.0-bp",
"tcpdump-4.7.0-bp",
"tcpdump-4.6.0-bp",
"tcpdump-4.6.0",
"tcpdump-4.5.0",
"tcpdump-3.8-bp",
"tcpdump-3.7.1",
"tcpdump-3.6.1",
"tcpdump-3.5.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16451.json",
"vanir_signatures": [
{
"id": "CVE-2018-16451-27d0f222",
"digest": {
"length": 1937,
"function_hash": "284528597429870462737953385328683542655"
},
"source": "https://github.com/the-tcpdump-group/tcpdump/commit/96480ab95308cd9234b4f09b175ebf60e17792c6",
"target": {
"file": "print-smb.c",
"function": "print_trans"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2018-16451-65668200",
"digest": {
"threshold": 0.9,
"line_hashes": [
"52360765314299712074480537956875111630",
"63416928053770545895660763357420962555",
"9066737171512705452207433355963303883",
"7892657909435996406875732138502108968",
"254280251589713256089220183170552889623",
"226288231056020067746430953145190070649",
"130954395980833079061976959881326797110",
"277792722672947299466682455442525240977",
"147623506496645499549955107779763472670",
"149183317133556831892272616957609470679",
"297276726950661810989684513351451286573"
]
},
"source": "https://github.com/the-tcpdump-group/tcpdump/commit/96480ab95308cd9234b4f09b175ebf60e17792c6",
"target": {
"file": "print-smb.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:21:24Z"
}
}
],
"modified": "2026-10-24T14:21:24.111548974Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/",
"https://usn.ubuntu.com/4252-1/",
"https://usn.ubuntu.com/4252-2/",
"https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES",
"https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html",
"https://seclists.org/bugtraq/2019/Dec/23",
"https://seclists.org/bugtraq/2019/Oct/28",
"https://security.netapp.com/advisory/ntap-20200120-0001/",
"https://support.apple.com/kb/HT210788",
"https://www.debian.org/security/2019/dsa-4547",
"https://github.com/the-tcpdump-group/tcpdump/commit/96480ab95308cd9234b4f09b175ebf60e17792c6"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*"
],
"vendor_product": "apple:mac_os_x",
"extracted_events": [
{
"range": [
{
"fixed": "10.15.2"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*"
],
"vendor_product": "tcpdump:tcpdump",
"extracted_events": [
{
"range": [
{
"fixed": "4.9.3"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "29"
},
{
"last_affected": "29"
},
{
"introduced": "30"
},
{
"last_affected": "30"
},
{
"introduced": "31"
},
{
"last_affected": "31"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.0"
},
{
"last_affected": "15.0"
},
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
},
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-16451",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443650,
"published_at": "2019-10-03T16:15:12.757+00:00"
}