{"answers":{"affected":"3 open source packages ship an affected version, including bitvec. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-35862 in the wild and no public exploit code.","fix":"Upgrade bitvec to 0.17.4 or later.","what":"CVE-2020-35862 is a critical use after free vulnerability in n/a, published on 31 Dec 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-2020-35862 and fix it if it is affected.\n\nWhat it is: CVE-2020-35862 is a critical use after free vulnerability in n/a, published on 31 Dec 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-2020-35862 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- bitvec (crates.io): affected from 0.11.0; fixed in 0.17.4\n- bitvec (crates.io): affected from 0.11.0; fixed in 0.17.4\n- bitvec (crates.io): affected from 0.11.0; fixed in 0.17.4\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-2020-35862/ (Markdown: https://insights.sbomify.com/CVE-2020-35862/index.md)","id":"CVE-2020-35862","markdown":"https://insights.sbomify.com/CVE-2020-35862/index.md","name":"CVE-2020-35862","record":{"aliases":["GHSA-7cjc-hvxf-gqh7","RUSTSEC-2020-0007"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust bitvec crate","requires_auth":"none","summary":"A use-after-free or double free vulnerability in the Rust bitvec crate allows attackers to potentially execute arbitrary code or cause a crash.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"bitvec","vendor":"bitvec_project"}],"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-416","name":"Use After Free"},{"id":"CWE-415","name":"Double Free"}],"description":"An issue was discovered in the bitvec crate before 0.17.4 for Rust. BitVec to BitBox conversion leads to a use-after-free or double free.","ecosystems":["crates.io"],"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":"Use after free and double free in bitvec","id":"CVE-2020-35862","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"use_after_free","year":"2020"},"n_packages":3,"n_references":1,"next":{"headline":"HTTP Request Smuggling in hyper","id":"CVE-2020-35863"},"packages":[{"ecosystem":"crates.io","fixed":["0.17.4"],"introduced":["0.11.0"],"last_affected":[],"package":"bitvec","purl":null,"source":"GHSA-7cjc-hvxf-gqh7"},{"ecosystem":"crates.io","fixed":["0.17.4"],"introduced":["0.11.0"],"last_affected":[],"package":"bitvec","purl":"pkg:cargo/bitvec","source":"GHSA-7cjc-hvxf-gqh7"},{"ecosystem":"crates.io","fixed":["0.17.4"],"introduced":["0.11.0"],"last_affected":[],"package":"bitvec","purl":"pkg:cargo/bitvec","source":"RUSTSEC-2020-0007"}],"prev":{"headline":"Out of bounds read in bumpalo","id":"CVE-2020-35861"},"products":["n/a"],"published":"2020-12-31","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":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"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":"A use-after-free or double free vulnerability in the Rust bitvec crate allows attackers to potentially execute arbitrary code or cause a crash.","url":"https://insights.sbomify.com/CVE-2020-35862/"}