129 lines
5.3 KiB
JSON
129 lines
5.3 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-34983",
|
|
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "GitHub_M",
|
|
"dateReserved": "2026-03-31T19:38:31.617Z",
|
|
"datePublished": "2026-04-09T18:47:26.575Z",
|
|
"dateUpdated": "2026-04-13T15:38:33.779Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"title": "Wasmtime has a use-after-free bug after cloning `wasmtime::Linker`",
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-416",
|
|
"lang": "en",
|
|
"description": "CWE-416: Use After Free",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV4_0": {
|
|
"attackVector": "PHYSICAL",
|
|
"attackComplexity": "HIGH",
|
|
"attackRequirements": "PRESENT",
|
|
"privilegesRequired": "HIGH",
|
|
"userInteraction": "ACTIVE",
|
|
"vulnConfidentialityImpact": "LOW",
|
|
"vulnIntegrityImpact": "LOW",
|
|
"vulnAvailabilityImpact": "LOW",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"subAvailabilityImpact": "NONE",
|
|
"baseScore": 1,
|
|
"baseSeverity": "LOW",
|
|
"vectorString": "CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
|
|
"version": "4.0"
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"name": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hfr4-7c6c-48w2",
|
|
"tags": [
|
|
"x_refsource_CONFIRM"
|
|
],
|
|
"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hfr4-7c6c-48w2"
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "bytecodealliance",
|
|
"product": "wasmtime",
|
|
"versions": [
|
|
{
|
|
"version": ">= 43.0.0, < 43.0.1",
|
|
"status": "affected"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
|
|
"shortName": "GitHub_M",
|
|
"dateUpdated": "2026-04-09T18:47:26.575Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Wasmtime is a runtime for WebAssembly. In 43.0.0, cloning a wasmtime::Linker is unsound and can result in use-after-free bugs. This bug is not controllable by guest Wasm programs. It can only be triggered by a specific sequence of embedder API calls made by the host. Specifically, the following steps must occur to trigger the bug clone a wasmtime::Linker, drop the original linker instance, use the new, cloned linker instance, resulting in a use-after-free. This vulnerability is fixed in 43.0.1."
|
|
}
|
|
],
|
|
"source": {
|
|
"advisory": "GHSA-hfr4-7c6c-48w2",
|
|
"discovery": "UNKNOWN"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hfr4-7c6c-48w2",
|
|
"tags": [
|
|
"exploit"
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-04-13T15:28:37.718395Z",
|
|
"id": "CVE-2026-34983",
|
|
"options": [
|
|
{
|
|
"Exploitation": "poc"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-04-13T15:38:33.779Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |