{"answers":{"affected":"1 open source package ship an affected version, including wasm3.","exploited":"There is no known exploitation of OSV-2021-701 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2021-701 yet. Limit exposure of the affected software until one is available.","what":"OSV-2021-701 is an use after free vulnerability in wasm3, published on 29 Apr 2021."},"fix_prompt":"Check this codebase for OSV-2021-701 and fix it if it is affected.\n\nWhat it is: OSV-2021-701 is an use after free vulnerability in wasm3, published on 29 Apr 2021. \nExploitation: There is no known exploitation of OSV-2021-701 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wasm3 (OSS-Fuzz): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/OSV-2021-701/ (Markdown: https://insights.sbomify.com/OSV-2021-701/index.md)","id":"OSV-2021-701","markdown":"https://insights.sbomify.com/OSV-2021-701/index.md","name":"OSV-2021-701","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"WebAssembly runtime library","requires_auth":"none","summary":"A heap-use-after-free vulnerability in the m3_FreeRuntime function allows attackers to potentially execute arbitrary code or cause a denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33765\n\n```\nCrash type: Heap-use-after-free READ 8\nCrash state:\nm3_FreeRuntime\nfuzzer.c\nRuntime_Release\n```","ecosystems":["OSS-Fuzz"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Heap-use-after-free in m3_FreeRuntime","id":"OSV-2021-701","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"use_after_free","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"wasm3","purl":"pkg:generic/wasm3","source":"OSV-2021-701"}],"products":null,"published":"2021-04-29","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"OSS-Fuzz","prefix":"OSV"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A heap-use-after-free vulnerability in the m3_FreeRuntime function allows attackers to potentially execute arbitrary code or cause a denial of service.","url":"https://insights.sbomify.com/OSV-2021-701/"}