{"answers":{"affected":"1 open source package ship an affected version, including oniguruma.","exploited":"There is no known exploitation of OSV-2020-1834 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-1834 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-1834 is a memory corruption vulnerability in oniguruma, published on 25 Sep 2020."},"fix_prompt":"Check this codebase for OSV-2020-1834 and fix it if it is affected.\n\nWhat it is: OSV-2020-1834 is a memory corruption vulnerability in oniguruma, published on 25 Sep 2020. \nExploitation: There is no known exploitation of OSV-2020-1834 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- oniguruma (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-2020-1834/ (Markdown: https://insights.sbomify.com/OSV-2020-1834/index.md)","id":"OSV-2020-1834","markdown":"https://insights.sbomify.com/OSV-2020-1834/index.md","name":"OSV-2020-1834","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Oniguruma regex library","requires_auth":"none","summary":"A stack buffer overflow in the Oniguruma regex library allows attackers to cause denial of service or potentially execute code 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=25893\n\n```\nCrash type: Stack-buffer-overflow WRITE 4\nCrash state:\nonigenc_unicode_get_case_fold_codes_by_str\nutf16be_get_case_fold_codes_by_str\nunravel_case_fold_string\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":"Stack-buffer-overflow in onigenc_unicode_get_case_fold_codes_by_str","id":"OSV-2020-1834","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":"oniguruma","purl":"pkg:generic/oniguruma","source":"OSV-2020-1834"}],"products":null,"published":"2020-09-25","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 stack buffer overflow in the Oniguruma regex library allows attackers to cause denial of service or potentially execute code via crafted input.","url":"https://insights.sbomify.com/OSV-2020-1834/"}