{"answers":{"affected":"1 open source package ship an affected version, including mruby.","exploited":"There is no known exploitation of OSV-2021-1213 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2021-1213 yet. Limit exposure of the affected software until one is available.","what":"OSV-2021-1213 is a memory corruption vulnerability in mruby, published on 10 Sep 2021."},"fix_prompt":"Check this codebase for OSV-2021-1213 and fix it if it is affected.\n\nWhat it is: OSV-2021-1213 is a memory corruption vulnerability in mruby, published on 10 Sep 2021. \nExploitation: There is no known exploitation of OSV-2021-1213 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mruby (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-2021-1213/ (Markdown: https://insights.sbomify.com/OSV-2021-1213/index.md)","id":"OSV-2021-1213","markdown":"https://insights.sbomify.com/OSV-2021-1213/index.md","name":"OSV-2021-1213","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"unknown","non_default_config":false,"product_category":"Ruby scripting library","requires_auth":"none","summary":"An unknown write vulnerability in the mruby VM execution loop can lead to memory corruption, potentially causing crashes or arbitrary code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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=38251\n\n```\nCrash type: UNKNOWN WRITE\nCrash state:\nmrb_vm_exec\nmrb_vm_run\nmrb_top_run\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":"UNKNOWN WRITE in mrb_vm_exec","id":"OSV-2021-1213","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"mruby","purl":"pkg:generic/mruby","source":"OSV-2021-1213"}],"products":null,"published":"2021-09-10","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":"An unknown write vulnerability in the mruby VM execution loop can lead to memory corruption, potentially causing crashes or arbitrary code execution.","url":"https://insights.sbomify.com/OSV-2021-1213/"}