133 lines
5.5 KiB
JSON
133 lines
5.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-34944",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-03-31T17:27:08.660Z",
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"datePublished": "2026-04-09T18:38:16.182Z",
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"dateUpdated": "2026-04-13T15:38:40.634Z"
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},
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"containers": {
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"cna": {
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"title": "Wasmtime segfault or unused out-of-sandbox load with `f64x2.splat` operator on x86-64",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-248",
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"lang": "en",
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"description": "CWE-248: Uncaught Exception",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "ACTIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 4.1,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-qqfj-4vcm-26hv",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-qqfj-4vcm-26hv"
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}
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],
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"affected": [
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{
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"vendor": "bytecodealliance",
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"product": "wasmtime",
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"versions": [
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{
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"version": "< 24.0.7",
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"status": "affected"
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},
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{
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"version": ">= 25.0.0, < 36.0.7",
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"status": "affected"
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},
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{
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"version": ">= 37.0.0, < 42.0.2",
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"status": "affected"
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},
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{
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"version": ">= 43.0.0, < 44.0.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-04-09T18:38:16.182Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, On x86-64 platforms with SSE3 disabled Wasmtime's compilation of the f64x2.splat WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are disabled this can result in a uncaught segfault due to loading from unmapped guard pages. With guard pages disabled it's possible for out-of-sandbox data to be loaded, but this data is not visible to WebAssembly guests. This vulnerability is fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1."
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}
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],
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"source": {
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"advisory": "GHSA-qqfj-4vcm-26hv",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-04-13T15:06:23.130132Z",
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"id": "CVE-2026-34944",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-04-13T15:38:40.634Z"
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}
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}
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]
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}
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} |