{"answers":{"affected":"1 open source package ship an affected version, including stb.","exploited":"There is no known exploitation of OSV-2020-1521 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-1521 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-1521 is a vulnerability in stb, published on 28 Jul 2020."},"fix_prompt":"Check this codebase for OSV-2020-1521 and fix it if it is affected.\n\nWhat it is: OSV-2020-1521 is a vulnerability in stb, published on 28 Jul 2020. \nExploitation: There is no known exploitation of OSV-2020-1521 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- stb (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-2020-1521/ (Markdown: https://insights.sbomify.com/OSV-2020-1521/index.md)","id":"OSV-2020-1521","markdown":"https://insights.sbomify.com/OSV-2020-1521/index.md","name":"OSV-2020-1521","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"stb image library","requires_auth":"none","summary":"An attacker can cause a denial of service via a crafted JPEG image due to use of uninitialized values in the stb image library.","user_interaction":"not_required","vuln_class":"other"},"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=22598\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nstbi__jpeg_huff_decode\nstbi__jpeg_decode_block_prog_ac\nstbi__parse_entropy_coded_data\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":"Use-of-uninitialized-value in stbi__jpeg_huff_decode","id":"OSV-2020-1521","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"other","year":"2020"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"stb","purl":"pkg:generic/stb","source":"OSV-2020-1521"}],"products":null,"published":"2020-07-28","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 attacker can cause a denial of service via a crafted JPEG image due to use of uninitialized values in the stb image library.","url":"https://insights.sbomify.com/OSV-2020-1521/"}