Medium
Security advisory
A NULL pointer dereference was discovered in wasm::Module::getFunctionOrNull in wasm/wasm.cpp in Binaryen 1.38.22. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm-opt.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-7151
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:33 UTC · Revision 1
Source evidence
A NULL pointer dereference was discovered in wasm::Module::getFunctionOrNull in wasm/wasm.cpp in Binaryen 1.38.22. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm-opt.
osv:CVE-2019-7151
Complete source record
{
"id": "459caca2a959ebd3824551e000adabee8255bd09e1fc4ea4ca67387c487a36d9",
"url": "https://osv.dev/vulnerability/CVE-2019-7151",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-7151",
"summary": "A NULL pointer dereference was discovered in wasm::Module::getFunctionOrNull in wasm/wasm.cpp in Binaryen 1.38.22. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm-opt.",
"evidence": "osv:CVE-2019-7151",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-7151",
"aliases": [
"CVE-2019-7151"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/webassembly/binaryen",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "153ba18ba99dc4dcef29a61e1e586af3df8d921d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "65"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"1.38.25",
"version_64",
"1.38.24",
"1.38.23",
"1.38.22",
"version_63",
"version_62",
"version_61",
"version_60",
"version_59",
"version_58",
"version_57",
"version_56",
"1.38.21",
"version_55",
"1.38.20",
"1.38.19",
"version_54",
"1.38.18",
"1.38.17",
"version_53",
"1.38.16",
"version_52",
"1.38.15",
"1.38.14",
"1.38.13",
"version_51",
"1.38.12",
"version_50",
"1.38.11",
"1.38.10",
"1.38.9",
"version_49",
"1.38.8",
"1.38.7",
"1.38.6",
"1.38.5",
"1.38.4",
"version_48",
"1.38.3",
"1.38.2",
"1.38.1",
"version_47",
"1.38.0",
"1.37.40",
"1.37.39",
"version_46",
"1.37.37",
"version_45",
"1.37.36",
"1.37.35",
"version_44",
"1.37.34",
"version_43",
"1.37.33",
"1.37.32",
"1.37.31",
"1.37.30",
"1.37.29",
"version_42",
"version_41",
"1.37.28",
"1.37.27",
"1.37.26",
"1.37.25",
"version_40",
"1.37.24",
"1.37.23",
"version_39",
"1.37.22",
"version_38",
"version_37",
"1.37.21",
"version_36",
"version_35",
"1.37.20",
"version_34",
"1.37.19",
"1.37.18",
"1.37.17",
"1.37.16",
"1.37.14",
"version_33",
"1.37.15",
"1.37.13",
"version_32",
"1.37.12",
"1.37.11",
"1.37.10",
"version_31",
"version_30",
"1.37.9",
"1.37.8",
"1.37.7",
"1.37.6",
"1.37.5",
"1.37.4",
"version_29",
"version_28",
"1.37.3",
"version_27",
"version_26",
"1.37.2",
"version_25",
"version_24",
"version_23",
"version_22",
"version_21",
"1.37.1",
"1.37.0",
"version_20",
"version_19",
"version_18",
"1.36.14",
"version_17",
"1.36.13",
"version_16",
"1.36.12",
"version_15",
"version_14",
"version_13",
"1.36.11",
"1.36.10",
"version_12",
"version_11",
"1.36.9",
"1.36.8",
"1.36.7",
"1.36.6",
"version_10",
"version_9",
"1.36.5",
"1.36.4",
"version_8",
"binary_0xb",
"version_3",
"version_7",
"1.36.3",
"1.36.2",
"version_6",
"version_5",
"version_4",
"version_2",
"version_1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-7151.json",
"vanir_signatures": [
{
"id": "CVE-2019-7151-309327dc",
"digest": {
"threshold": 0.9,
"line_hashes": [
"22616790360282577033674605180077833219",
"191972970298653173444158597266287009694",
"14821571429962120343001262233210576335",
"151191529705392329886293484142824340752",
"185122690502798721846121553612976097687",
"53197629183357289701089927573176392278",
"324194258621610357039876706449906529187",
"288962724844564451928959159070423739797",
"119541822130047711562403959423585453020",
"196957992580538602360349810475843857508",
"266074370991696475216603390399545124213"
]
},
"source": "https://github.com/webassembly/binaryen/commit/153ba18ba99dc4dcef29a61e1e586af3df8d921d",
"target": {
"file": "src/tools/wasm-emscripten-finalize.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-7151-5c11ab82",
"digest": {
"length": 466,
"function_hash": "114506349049517890130313607795175520772"
},
"source": "https://github.com/webassembly/binaryen/commit/153ba18ba99dc4dcef29a61e1e586af3df8d921d",
"target": {
"file": "src/wasm/wasm-emscripten.cpp",
"function": "AsmConstWalker::visitCall"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-7151-8fb37496",
"digest": {
"length": 5871,
"function_hash": "138423354102750047574691565677008332270"
},
"source": "https://github.com/webassembly/binaryen/commit/153ba18ba99dc4dcef29a61e1e586af3df8d921d",
"target": {
"file": "src/tools/wasm-emscripten-finalize.cpp",
"function": "main"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-7151-a1e1d720",
"digest": {
"threshold": 0.9,
"line_hashes": [
"315711385697882142515874801209616814643",
"296156224043627193328400495169611395702",
"77499482424643067126151120578878875266",
"274324235565113840226923181117945430074",
"90088919803854712328793541726553905294",
"239511132063355793396937242033905988083",
"37757062407568417218192717800299663089",
"99495896202181285171447783518041064724",
"39719218561181330581269317214892922476",
"130840213018713389535742735768989788570",
"59454224216472073359920052981429413417",
"81681221918972354805958228841923233931",
"61967027930462198887128716957949142642",
"16540623721121067462332746169520368488",
"89218691273730261051480484430257932328",
"80088878758691338675558368774357100149",
"36203083223426206760729530190185201362",
"214050444586084780357169729595550129855",
"41674973558809398479455871761264659042",
"189369635161906183679516518282489184360",
"143351518440347716055171766304302159734",
"41776136258577880614344662206580082890",
"50217705517904600268041040273596962622",
"193172374485864913901209068670512605948",
"184066918667677860940062195156789695990",
"87407311439441835597684821978109907569",
"135947261108190545169005646228083740563",
"96562869205760499504990143647018032837",
"184528604685741297685066204159611654836",
"296700476545690631986867236150304976384",
"169728093976989309268302028951847201368",
"291789020970159672831707353184537475750",
"170228873566876733807541136341936756863",
"332714337655117707011562848579240136886",
"266592970334377096938786646358898995910",
"244907938788025967984980323528724878551"
]
},
"source": "https://github.com/webassembly/binaryen/commit/153ba18ba99dc4dcef29a61e1e586af3df8d921d",
"target": {
"file": "src/wasm/wasm-emscripten.cpp"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:49:50Z"
}
}
],
"modified": "2026-10-20T13:49:50.965209037Z",
"provider": "osv",
"references": [
"https://github.com/WebAssembly/binaryen/issues/1881"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-7151",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388256,
"published_at": "2019-01-29T00:29:00.517+00:00"
}