The Rx parser in tcpdump before 4.9.3 has a buffer over-read in print-rx.c:rxcachefind() and rxcacheinsert().
{
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "10.15.2"
}
],
"cpes": [
"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*"
],
"vendor_product": "apple:mac_os_x",
"source": "CPE_RANGE"
},
{
"extracted_events": [
{
"last_affected": "8.0"
},
{
"last_affected": "9.0"
},
{
"last_affected": "10.0"
}
],
"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",
"source": "CPE_STRING"
},
{
"extracted_events": [
{
"last_affected": "29"
},
{
"last_affected": "30"
},
{
"last_affected": "31"
}
],
"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",
"source": "CPE_STRING"
},
{
"extracted_events": [
{
"last_affected": "15.0"
},
{
"last_affected": "15.1"
}
],
"cpes": [
"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"source": "CPE_STRING"
},
{
"extracted_events": [
{
"last_affected": "7.0"
},
{
"last_affected": "8.0"
}
],
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux",
"source": "CPE_STRING"
}
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.9.3"
}
],
"cpe": "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
"source": [
"CPE_RANGE",
"REFERENCES"
]
}[
{
"digest": {
"line_hashes": [
"19587543160174530405703525878712576265",
"167408614826061526966625052665659547383",
"149042217363820439688694977144783701002",
"165332947866454417508965751355958372023",
"30255607529611135323090160820427285918",
"269993052740476856793002447474678053941",
"148829086551596970206983819280674937748",
"148145564696289314780256778135632141407"
],
"threshold": 0.9
},
"id": "CVE-2018-14466-74033021",
"signature_version": "v1",
"target": {
"file": "print-rx.c"
},
"deprecated": false,
"signature_type": "Line",
"source": "https://github.com/the-tcpdump-group/tcpdump/commit/c24922e692a52121e853a84ead6b9337f4c08a94"
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-14466.json"
"2026-05-30T12:22:19Z"