{"answers":{"affected":"1 open source package ship an affected version, including md4c.","exploited":"There is no known exploitation of OSV-2022-42 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2022-42 yet. Limit exposure of the affected software until one is available.","what":"OSV-2022-42 is a memory corruption vulnerability in md4c, published on 14 Jan 2022."},"fix_prompt":"Check this codebase for OSV-2022-42 and fix it if it is affected.\n\nWhat it is: OSV-2022-42 is a memory corruption vulnerability in md4c, published on 14 Jan 2022. \nExploitation: There is no known exploitation of OSV-2022-42 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- md4c (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-2022-42/ (Markdown: https://insights.sbomify.com/OSV-2022-42/index.md)","id":"OSV-2022-42","markdown":"https://insights.sbomify.com/OSV-2022-42/index.md","name":"OSV-2022-42","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Markdown parsing library","requires_auth":"none","summary":"A heap-buffer-overflow in the markdown parser allows attackers to cause a denial of service via crafted input.","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=43589\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nmd_decode_utf8__\nmd_link_label_hash\nmd_is_link_reference\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-buffer-overflow in md_decode_utf8__","id":"OSV-2022-42","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"memory_corruption","year":"2022"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"md4c","purl":"pkg:generic/md4c","source":"OSV-2022-42"}],"products":null,"published":"2022-01-14","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-buffer-overflow in the markdown parser allows attackers to cause a denial of service via crafted input.","url":"https://insights.sbomify.com/OSV-2022-42/"}