{"answers":{"affected":"1 open source package ship an affected version, including wireshark.","exploited":"There is no known exploitation of OSV-2020-256 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2020-256 yet. Limit exposure of the affected software until one is available.","what":"OSV-2020-256 is a memory corruption vulnerability in wireshark, published on 27 Jun 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-2020-256 and fix it if it is affected.\n\nWhat it is: OSV-2020-256 is a memory corruption vulnerability in wireshark, published on 27 Jun 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-2020-256 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wireshark (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-2020-256/ (Markdown: https://insights.sbomify.com/OSV-2020-256/index.md)","id":"OSV-2020-256","markdown":"https://insights.sbomify.com/OSV-2020-256/index.md","name":"OSV-2020-256","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Wireshark dissector","requires_auth":"none","summary":"A global buffer overflow in the WASSP dissector allows remote attackers to cause a denial of service via crafted packets.","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=20004\n\n```\nCrash type: Global-buffer-overflow READ 8\nCrash state:\ndissect_wassp_sub_tlv\ndissect_wassp_sub_tlv\ndissect_wassp_tlv\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":"Global-buffer-overflow in dissect_wassp_sub_tlv","id":"OSV-2020-256","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":"wireshark","purl":"pkg:generic/wireshark","source":"OSV-2020-256"}],"products":null,"published":"2020-06-27","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 global buffer overflow in the WASSP dissector allows remote attackers to cause a denial of service via crafted packets.","url":"https://insights.sbomify.com/OSV-2020-256/"}