{"answers":{"affected":"1 open source package ship an affected version, including kimageformats.","exploited":"There is no known exploitation of OSV-2021-525 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2021-525 yet. Limit exposure of the affected software until one is available.","what":"OSV-2021-525 is an use after free vulnerability in kimageformats, published on 16 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for OSV-2021-525 and fix it if it is affected.\n\nWhat it is: OSV-2021-525 is an use after free vulnerability in kimageformats, published on 16 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of OSV-2021-525 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- kimageformats (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-2021-525/ (Markdown: https://insights.sbomify.com/OSV-2021-525/index.md)","id":"OSV-2021-525","markdown":"https://insights.sbomify.com/OSV-2021-525/index.md","name":"OSV-2021-525","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"AV1 video codec","requires_auth":"none","summary":"An attacker can cause a denial of service via a use-of-uninitialized-value bug in the AV1 video codec's chroma edge filtering.","user_interaction":"not_required","vuln_class":"use_after_free"},"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=32059\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nvoid edge_filtering_chroma_internal\u003cunsigned char\u003e\nedge_filtering_chroma\nthread_task_deblock_CTBRow::work\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 void edge_filtering_chroma_internal\u003cunsigned char\u003e","id":"OSV-2021-525","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"use_after_free","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"kimageformats","purl":"pkg:generic/kimageformats","source":"OSV-2021-525"}],"products":null,"published":"2021-03-16","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 use-of-uninitialized-value bug in the AV1 video codec's chroma edge filtering.","url":"https://insights.sbomify.com/OSV-2021-525/"}