{"id":"EUVD-2024-2567","revision":null,"records":[{"revision":"fb7cd8ba3ad44a499e7ce71123f12081","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-43367","aliases":[],"title":"Boa has an uncaught exception when transitioning the state of `AsyncGenerator` objects","description":"Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts. Boa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`. However, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user. Version 0.19.0 is patched to correctly handle this case. Users unable to upgrade to the patched version would want to use `std::panic::catch_unwind` to ensure any exceptions caused by the engine don't impact the availability of the main application.","state":0,"publishedAt":"2024-08-15T20:38:23.53+00:00","modifiedAt":"2024-08-20T15:45:24.595+00:00","affected":[{"ecosystem":"Vendor product","name":"boa","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"boa-dev\",\n                    \"product\": \"boa\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.16, < 0.19.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq","https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r","https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-43367","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-43367","identifiers":["CVE-2024-43367"]},"retained":false,"historicalAffected":[]},{"revision":"5012a337487840739ab1508336715139","observedAt":"2026-11-09T01:04:56.717+00:00","statement":{"source":"euvd","id":"EUVD-2024-2567","aliases":["CVE-2024-43367","GHSA-f67q-wr6w-23jq"],"title":"Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on…","description":"Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts. Boa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`. However, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user. Version 0.19.0 is patched to correctly handle this case. Users unable to upgrade to the patched version would want to use `std::panic::catch_unwind` to ensure any exceptions caused by the engine don't impact the availability of the main application.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq","https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r","https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-2567","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 15, 2024, 8:38:23 PM","dateUpdated":"Aug 20, 2024, 3:45:24 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2024-2567","identifiers":["EUVD-2024-2567","CVE-2024-43367","GHSA-f67q-wr6w-23jq"]},"retained":false,"historicalAffected":[]},{"revision":"4b95078b60cb49999a2ef7f3a8dd6ec6","observedAt":"2026-10-25T00:17:28.27+00:00","statement":{"source":"nvd","id":"CVE-2024-43367","aliases":[],"title":"Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on…","description":"Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts. Boa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`. However, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user. Version 0.19.0 is patched to correctly handle this case. Users unable to upgrade to the patched version would want to use `std::panic::catch_unwind` to ensure any exceptions caused by the engine don't impact the availability of the main application.","state":0,"publishedAt":"2024-08-15T21:15:17.777+00:00","modifiedAt":"2026-06-17T07:50:53.867+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7","https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq","https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-43367","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-248"],"productCriteria":[],"sourceDates":{"published":"2024-08-15T21:15:17.777","lastModified":"2026-06-17T07:50:53.867"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2024-43367","identifiers":["CVE-2024-43367"]},"retained":false,"historicalAffected":[]},{"revision":"357bdf8de3a843bf9e730dc5c72d1de0","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-f67q-wr6w-23jq","aliases":["CVE-2024-43367","RUSTSEC-2024-0444"],"title":"Boa has an uncaught exception when transitioning the state of `AsyncGenerator` objects","description":"A wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts.\n\n## Details\n\nBoa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`.\nHowever, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user.\n\n## Patches\n\nVersion 0.19.0 is patched to correctly handle this case.\n\n## Workarounds\n\nUsers unable to upgrade to the patched version would want to use [`std::panic::catch_unwind`](https://doc.rust-lang.org/std/panic/fn.catch_unwind.html) to ensure any exceptions caused by the engine don't impact the availability of the main application.\n\n## References\n\n- https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7\n- https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r","state":0,"publishedAt":"2024-08-14T20:49:51+00:00","modifiedAt":"2026-09-10T03:50:17.4030008+00:00","affected":[{"ecosystem":"crates.io","name":"boa_engine","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"0.16"},{"kind":"fixed","version":"0.19.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq","https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r","https://nvd.nist.gov/vuln/detail/CVE-2024-43367","https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7","https://github.com/boa-dev/boa","https://rustsec.org/advisories/RUSTSEC-2024-0444.html"],"sourceUrl":"https://github.com/advisories/GHSA-f67q-wr6w-23jq","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-f67q-wr6w-23jq","identifiers":["GHSA-f67q-wr6w-23jq","CVE-2024-43367","RUSTSEC-2024-0444"]},"retained":false,"historicalAffected":[]},{"revision":"16196083614540d8be7c8eecf185c04f","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"RUSTSEC-2024-0444","aliases":["CVE-2024-43367","GHSA-f67q-wr6w-23jq"],"title":"Uncaught exception when transitioning the state of `AsyncGenerator` objects from within a property getter of `then`","description":"A wrong assumption made when handling ECMAScript's AsyncGenerator operations\ncan cause an uncaught exception on certain scripts.\n\n## Details\n\nBoa's implementation of AsyncGenerator makes the assumption that the state of\nan AsyncGenerator object cannot change while resolving a promise created by\nmethods of AsyncGenerator such as %AsyncGeneratorPrototype%.next,\n%AsyncGeneratorPrototype%.return, or %AsyncGeneratorPrototype%.throw.\n\nHowever, a carefully constructed code could trigger a state transition from\na getter method for the promise's then property, which causes the engine to\nfail an assertion of this assumption, causing an uncaught exception. This\ncould be used to create a Denial Of Service attack in applications that\nrun arbitrary ECMAScript code provided by an external user.\n\n## Patches\n\nVersion 0.19.0 is patched to correctly handle this case.\n\n## Workarounds\n\nUsers unable to upgrade to the patched version would want to use\nstd::panic::catch_unwind to ensure any exceptions caused by the\nengine don't impact the availability of the main application.","state":0,"publishedAt":"2024-08-14T12:00:00+00:00","modifiedAt":"2026-10-12T18:00:06.8117725+00:00","affected":[{"ecosystem":"crates.io","name":"boa_engine","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.16.0"},{"kind":"fixed","version":"0.19.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","score":null,"severity":null}],"references":["https://crates.io/crates/boa_engine","https://rustsec.org/advisories/RUSTSEC-2024-0444.html","https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7","https://nvd.nist.gov/vuln/detail/CVE-2024-43357"],"sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2024-0444","license":"OSV · upstream source license applies","key":"osv:RUSTSEC-2024-0444","identifiers":["RUSTSEC-2024-0444","CVE-2024-43367","GHSA-f67q-wr6w-23jq"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T10:21:23.1769119+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T10:21:23.1769119+00:00","lastSuccessAt":"2026-11-10T10:21:23.4268898+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:23.4268987+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-8bdcdeeb414e06ff50ed637d818ac25d52680d19f71fc0ebe3f4c4b3f836ed38","complete":true,"records":421927,"lastAttemptAt":"2026-11-10T10:21:22.8157744+00:00","lastSuccessAt":"2026-11-10T09:21:38.1064889+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:22.8157744+00:00","snapshotPublishedAt":"2026-11-10T09:20:43+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-2e6a476534094233b48f2f0b6da5cf35","complete":true,"records":13689,"lastAttemptAt":"2026-11-10T10:21:50.2500014+00:00","lastSuccessAt":"2026-11-10T06:05:35.03+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:05:35.03+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13742,"expectedIdentifiers":13742,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T10:21:23.1769119+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T10:21:23.1769119+00:00","lastSuccessAt":"2026-11-10T10:21:23.4276529+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:23.4276532+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-b0b0499af228434598651aa5d221386e","complete":false,"records":13695,"lastAttemptAt":"2026-11-10T10:21:49.6403901+00:00","lastSuccessAt":"2026-11-10T10:21:49.637+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-10T10:21:49.637+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13642,"expectedIdentifiers":13742,"failedIdentifiers":100},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-cdffb4589856378aa42e8d1bd4a6c74e27a180d8160bf764c44715ef760f0a62","complete":true,"records":9932,"lastAttemptAt":"2026-11-10T10:21:23.1241572+00:00","lastSuccessAt":"2026-11-10T00:04:19.8260565+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:23.1241572+00:00","snapshotPublishedAt":"2026-11-09T23:48:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T10:21:22.8858542+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:22.8858542+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-94169eec81ea3989aa551092397ff34ae53c104b4a6ce646e1524452e4ab2a39","complete":true,"records":3065,"lastAttemptAt":"2026-11-10T10:21:23.1397622+00:00","lastSuccessAt":"2026-11-10T08:04:45.5923716+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:23.1397622+00:00","snapshotPublishedAt":"2026-11-10T06:48:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-4331051b0b2d4ccdbdca3aa196b0be3818a465064a4b18dde4cf39c2250eb490","complete":true,"records":231599,"lastAttemptAt":"2026-11-10T10:21:23.0142877+00:00","lastSuccessAt":"2026-11-10T08:04:37.1757322+00:00","error":null,"lastVerifiedAt":"2026-11-10T10:21:23.0142877+00:00","snapshotPublishedAt":"2026-11-10T07:33:02+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}