{"answers":{"affected":"2 open source packages ship an affected version, including scratch-vm. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-14000 in the wild and no public exploit code.","fix":"Upgrade scratch-vm to 0.2.0-prerelease.20200714185213 or later.","what":"CVE-2020-14000 is a critical unsafe deserialization vulnerability in n/a, published on 16 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 CVE-2020-14000 and fix it if it is affected.\n\nWhat it is: CVE-2020-14000 is a critical unsafe deserialization vulnerability in n/a, published on 16 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 CVE-2020-14000 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- scratch-vm (npm): affected all versions; fixed in 0.2.0-prerelease.20200714185213\n- scratch-vm (npm): affected all versions; fixed in 0.2.0-prerelease.20200714185213\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/CVE-2020-14000/ (Markdown: https://insights.sbomify.com/CVE-2020-14000/index.md)","id":"CVE-2020-14000","markdown":"https://insights.sbomify.com/CVE-2020-14000/index.md","name":"CVE-2020-14000","record":{"aliases":["GHSA-vc9j-fhvv-8vrf"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Scratch VM library","requires_auth":"none","summary":"Attackers can achieve remote code execution by crafting malicious project files that exploit unsafe URL loading in the Scratch VM library.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"scratch-vm","vendor":"mit"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"MIT Lifelong Kindergarten Scratch scratch-vm before 0.2.0-prerelease.20200714185213 loads extension URLs from untrusted project.json files with certain _ characters, resulting in remote code execution because the URL's content is treated as a script and is executed as a worker. The responsible code is getExtensionIdForOpcode in serialization/sb3.js. The use of _ is incompatible with a protection mechanism in older versions, in which URLs were split and consequently deserialization attacks were prevented. NOTE: the scratch.mit.edu hosted service is not affected because of the lack of worker scripts.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Remote Code Execution in scratch-vm","id":"CVE-2020-14000","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"deserialization","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Unintended read access in kramdown gem","id":"CVE-2020-14001"},"packages":[{"ecosystem":"npm","fixed":["0.2.0-prerelease.20200714185213"],"introduced":["0"],"last_affected":[],"package":"scratch-vm","purl":null,"source":"GHSA-vc9j-fhvv-8vrf"},{"ecosystem":"npm","fixed":["0.2.0-prerelease.20200714185213"],"introduced":["0"],"last_affected":[],"package":"scratch-vm","purl":"pkg:npm/scratch-vm","source":"GHSA-vc9j-fhvv-8vrf"}],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2020-13999"},"products":["n/a"],"published":"2020-07-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can achieve remote code execution by crafting malicious project files that exploit unsafe URL loading in the Scratch VM library.","url":"https://insights.sbomify.com/CVE-2020-14000/"}