{"answers":{"affected":"1 open source package ship an affected version, including harfbuzz.","exploited":"There is no known exploitation of OSV-2020-704 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-704 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-704 is a memory corruption vulnerability in harfbuzz, published on 1 Jul 2020."},"fix_prompt":"Check this codebase for OSV-2020-704 and fix it if it is affected.\n\nWhat it is: OSV-2020-704 is a memory corruption vulnerability in harfbuzz, published on 1 Jul 2020. \nExploitation: There is no known exploitation of OSV-2020-704 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- harfbuzz (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-2020-704/ (Markdown: https://insights.sbomify.com/OSV-2020-704/index.md)","id":"OSV-2020-704","markdown":"https://insights.sbomify.com/OSV-2020-704/index.md","name":"OSV-2020-704","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Font parsing library","requires_auth":"none","summary":"A heap buffer overflow in the font parsing library allows attackers to execute arbitrary code or cause denial of service via malicious fonts.","user_interaction":"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=13736\n\n```\nCrash type: Heap-buffer-overflow WRITE 1\nCrash state:\nBEInt\u003cunsigned char, 1\u003e::set\nCFF::CFFIndex\u003cOT::IntType\u003cunsigned int, 4u\u003e \u003e::set_offset_at\nbool CFF::FDArray\u003cOT::IntType\u003cunsigned int, 4u\u003e \u003e::serialize\u003cCFF::cff2_font_dict\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 BEInt\u003cunsigned char, 1\u003e::set","id":"OSV-2020-704","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"harfbuzz","purl":"pkg:generic/harfbuzz","source":"OSV-2020-704"}],"products":null,"published":"2020-07-01","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 font parsing library allows attackers to execute arbitrary code or cause denial of service via malicious fonts.","url":"https://insights.sbomify.com/OSV-2020-704/"}