{"answers":{"affected":"1 open source package ship an affected version, including libssh2.","exploited":"There is no known exploitation of OSV-2025-433 in the wild and no public exploit code.","fix":"No fix has been published for OSV-2025-433 yet. Limit exposure of the affected software until one is available.","what":"OSV-2025-433 is a vulnerability in libssh2, published on 5 Jun 2025. It can be exploited over the network, with no action from the victim."},"fix_prompt":"Check this codebase for OSV-2025-433 and fix it if it is affected.\n\nWhat it is: OSV-2025-433 is a vulnerability in libssh2, published on 5 Jun 2025. It can be exploited over the network, with no action from the victim.\nExploitation: There is no known exploitation of OSV-2025-433 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- libssh2 (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-2025-433/ (Markdown: https://insights.sbomify.com/OSV-2025-433/index.md)","id":"OSV-2025-433","markdown":"https://insights.sbomify.com/OSV-2025-433/index.md","name":"OSV-2025-433","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libssh2 library","requires_auth":"unknown","summary":"A null pointer dereference in libssh2's packet handling can cause a denial of service when processing malformed network packets.","user_interaction":"not_required","vuln_class":"null_dereference"},"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=422217191\n\n```\nCrash type: Null-dereference READ\nCrash state:\n_libssh2_packet_add\nfullpacket\n_libssh2_transport_read\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":"Null-dereference READ in _libssh2_packet_add","id":"OSV-2025-433","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"OSS-Fuzz","product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"OSS-Fuzz","fixed":[],"introduced":[],"last_affected":[],"package":"libssh2","purl":"pkg:generic/libssh2","source":"OSV-2025-433"}],"products":null,"published":"2025-06-05","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 null pointer dereference in libssh2's packet handling can cause a denial of service when processing malformed network packets.","url":"https://insights.sbomify.com/OSV-2025-433/"}