{"answers":{"affected":"1 open source package ship an affected version, including libaom.","exploited":"There is no known exploitation of OSV-2020-319 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-319 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-319 is an use after free vulnerability in libaom, published on 1 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for OSV-2020-319 and fix it if it is affected.\n\nWhat it is: OSV-2020-319 is an use after free vulnerability in libaom, published on 1 Jul 2020. 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-2020-319 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libaom (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-2020-319/ (Markdown: https://insights.sbomify.com/OSV-2020-319/index.md)","id":"OSV-2020-319","markdown":"https://insights.sbomify.com/OSV-2020-319/index.md","name":"OSV-2020-319","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 in AV1 video decoding by triggering a use-of-uninitialized-value error in the inverse transform function.","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=12552\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\ninv_txfm2d_add_facade\nav1_inv_txfm2d_add_64x64_c\nav1_inverse_transform_block\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 inv_txfm2d_add_facade","id":"OSV-2020-319","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"use_after_free","year":"2020"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"libaom","purl":"pkg:generic/libaom","source":"OSV-2020-319"}],"products":null,"published":"2020-07-01","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 in AV1 video decoding by triggering a use-of-uninitialized-value error in the inverse transform function.","url":"https://insights.sbomify.com/OSV-2020-319/"}