{"answers":{"affected":"1 open source package ship an affected version, including libspng.","exploited":"There is no known exploitation of OSV-2020-307 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-307 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-307 is a memory corruption vulnerability in libspng, published on 30 Jun 2020."},"fix_prompt":"Check this codebase for OSV-2020-307 and fix it if it is affected.\n\nWhat it is: OSV-2020-307 is a memory corruption vulnerability in libspng, published on 30 Jun 2020. \nExploitation: There is no known exploitation of OSV-2020-307 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libspng (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-2020-307/ (Markdown: https://insights.sbomify.com/OSV-2020-307/index.md)","id":"OSV-2020-307","markdown":"https://insights.sbomify.com/OSV-2020-307/index.md","name":"OSV-2020-307","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"unknown","non_default_config":false,"product_category":"PNG decoding library","requires_auth":"none","summary":"A heap-buffer-overflow in the spng library allows attackers to cause crashes or potentially execute code via malicious PNG files.","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=16830\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nspng_decode_image\nspng_read_fuzzer.cc\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 spng_decode_image","id":"OSV-2020-307","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":"libspng","purl":"pkg:generic/libspng","source":"OSV-2020-307"}],"products":null,"published":"2020-06-30","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 spng library allows attackers to cause crashes or potentially execute code via malicious PNG files.","url":"https://insights.sbomify.com/OSV-2020-307/"}