{"answers":{"affected":"1 open source package ship an affected version, including harfbuzz.","exploited":"There is no known exploitation of OSV-2018-172 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2018-172 yet. Limit exposure of the affected software until one is available.","what":"OSV-2018-172 is a memory corruption vulnerability in harfbuzz, published on 13 Jan 2021."},"fix_prompt":"Check this codebase for OSV-2018-172 and fix it if it is affected.\n\nWhat it is: OSV-2018-172 is a memory corruption vulnerability in harfbuzz, published on 13 Jan 2021. \nExploitation: There is no known exploitation of OSV-2018-172 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-2018-172/ (Markdown: https://insights.sbomify.com/OSV-2018-172/index.md)","id":"OSV-2018-172","markdown":"https://insights.sbomify.com/OSV-2018-172/index.md","name":"OSV-2018-172","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"HarfBuzz text shaping","requires_auth":"none","summary":"An unknown read vulnerability in HarfBuzz's kerning fallback function can cause a crash, potentially leading to denial of service.","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=10762\n\n```\nCrash type: UNKNOWN READ\nCrash state:\n_hb_ot_shape_fallback_kern\nhb_ot_position\nhb_ot_shape_internal\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 READ in _hb_ot_shape_fallback_kern","id":"OSV-2018-172","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":"harfbuzz","purl":"pkg:generic/harfbuzz","source":"OSV-2018-172"}],"products":null,"published":"2021-01-13","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 read vulnerability in HarfBuzz's kerning fallback function can cause a crash, potentially leading to denial of service.","url":"https://insights.sbomify.com/OSV-2018-172/"}