{"id":"UBUNTU-CVE-2021-45293","details":"A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.","modified":"2025-10-24T04:50:38Z","published":"2021-12-21T18:15:00Z","upstream":["CVE-2021-45293"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45293"},{"type":"REPORT","url":"https://github.com/WebAssembly/binaryen/issues/4384"},{"type":"REPORT","url":"https://github.com/WebAssembly/binaryen/pull/4388"},{"type":"REPORT","url":"https://github.com/WebAssembly/binaryen/commit/b1f6298ed8756bdc3336429c04b92ba58d000b49"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-45293"}],"affected":[{"package":{"name":"binaryen","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/binaryen@91-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["89-1","90-1","91-1"],"ecosystem_specific":{"binaries":[{"binary_name":"binaryen","binary_version":"91-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45293.json"}},{"package":{"name":"binaryen","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/binaryen@105-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["99-3","105-1"],"ecosystem_specific":{"binaries":[{"binary_name":"binaryen","binary_version":"105-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45293.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}