{"answers":{"affected":"3 open source packages ship an affected version, including qcell.","exploited":"There is no known exploitation of GHSA-9c9f-7x9p-4wqp in the wild and no public exploit code.","fix":"Upgrade qcell to 0.4.3 or later.","what":"GHSA-9c9f-7x9p-4wqp is a memory corruption vulnerability in qcell, published on 24 Jan 2022."},"fix_prompt":"Check this codebase for GHSA-9c9f-7x9p-4wqp and fix it if it is affected.\n\nWhat it is: GHSA-9c9f-7x9p-4wqp is a memory corruption vulnerability in qcell, published on 24 Jan 2022. \nExploitation: There is no known exploitation of GHSA-9c9f-7x9p-4wqp in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- qcell (crates.io): affected all versions; fixed in 0.4.3\n- qcell (crates.io): affected all versions; fixed in 0.4.3\n- qcell (crates.io): affected from 0.0.0-0; fixed in 0.4.3\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/GHSA-9c9f-7x9p-4wqp/ (Markdown: https://insights.sbomify.com/GHSA-9c9f-7x9p-4wqp/index.md)","id":"GHSA-9c9f-7x9p-4wqp","markdown":"https://insights.sbomify.com/GHSA-9c9f-7x9p-4wqp/index.md","name":"GHSA-9c9f-7x9p-4wqp","record":{"aliases":["RUSTSEC-2022-0007"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"unknown","non_default_config":false,"product_category":"Rust concurrency library","requires_auth":"none","summary":"A malicious coder can exploit covariance to bypass singleton checks, causing memory corruption and potential code execution in Rust applications using this library.","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":"This is impossible to do by accident, but by carefully constructing\nmarker types to be covariant, a malicious coder can cheat the\nsingleton check in `TCellOwner` and `TLCellOwner`, giving unsound\naccess to cell memory.  This could take the form of getting two\nmutable references to the same memory, or a mutable reference and an\nimmutable reference.\n\nThe fix is for the crate to internally force the marker type to be\ninvariant.  This blocks the conversion between covariant types which\nRust normally allows.","ecosystems":["crates.io"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"A malicious coder can get unsound access to TCell or TLCell memory","id":"GHSA-9c9f-7x9p-4wqp","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"memory_corruption","year":"2022"},"n_packages":3,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.4.3"],"introduced":["0"],"last_affected":[],"package":"qcell","purl":null,"source":"GHSA-9c9f-7x9p-4wqp"},{"ecosystem":"crates.io","fixed":["0.4.3"],"introduced":["0"],"last_affected":[],"package":"qcell","purl":"pkg:cargo/qcell","source":"GHSA-9c9f-7x9p-4wqp"},{"ecosystem":"crates.io","fixed":["0.4.3"],"introduced":["0.0.0-0"],"last_affected":[],"package":"qcell","purl":"pkg:cargo/qcell","source":"RUSTSEC-2022-0007"}],"products":null,"published":"2022-01-24","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A malicious coder can exploit covariance to bypass singleton checks, causing memory corruption and potential code execution in Rust applications using this library.","url":"https://insights.sbomify.com/GHSA-9c9f-7x9p-4wqp/"}