{"answers":{"affected":"3 open source packages ship an affected version, including mimalloc.","exploited":"There is no known exploitation of GHSA-g23h-7vf9-xc25 in the wild and no public exploit code.","fix":"Upgrade mimalloc to 0.1.39 or later.","what":"GHSA-g23h-7vf9-xc25 is a memory corruption vulnerability in mimalloc, published on 23 Nov 2022."},"fix_prompt":"Check this codebase for GHSA-g23h-7vf9-xc25 and fix it if it is affected.\n\nWhat it is: GHSA-g23h-7vf9-xc25 is a memory corruption vulnerability in mimalloc, published on 23 Nov 2022. \nExploitation: There is no known exploitation of GHSA-g23h-7vf9-xc25 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- mimalloc (crates.io): affected all versions; fixed in 0.1.39\n- mimalloc (crates.io): affected all versions; fixed in 0.1.39\n- mimalloc (crates.io): affected from 0.0.0-0; fixed in 0.1.39\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-g23h-7vf9-xc25/ (Markdown: https://insights.sbomify.com/GHSA-g23h-7vf9-xc25/index.md)","id":"GHSA-g23h-7vf9-xc25","markdown":"https://insights.sbomify.com/GHSA-g23h-7vf9-xc25/index.md","name":"GHSA-g23h-7vf9-xc25","record":{"aliases":["RUSTSEC-2022-0094"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Rust memory allocator","requires_auth":"none","summary":"Incorrect memory alignment in mimalloc bindings can lead to memory corruption, crashes, or potential code execution in Rust applications.","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 crate depended on a promise regarding alignments made by the author of the mimalloc allocator to avoid using aligned allocation functions where possible for performance reasons.\nSince then, the mimalloc allocator's logic changed, making it break this promise.\nThis caused this crate to return memory with an incorrect alignment for some allocations, particularly those with large alignments.\nThe flaw was fixed by always using the aligned allocation functions.","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":"Mimalloc Can Allocate Memory with Bad Alignment","id":"GHSA-g23h-7vf9-xc25","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":["0.1.39"],"introduced":["0"],"last_affected":[],"package":"mimalloc","purl":null,"source":"GHSA-g23h-7vf9-xc25"},{"ecosystem":"crates.io","fixed":["0.1.39"],"introduced":["0"],"last_affected":[],"package":"mimalloc","purl":"pkg:cargo/mimalloc","source":"GHSA-g23h-7vf9-xc25"},{"ecosystem":"crates.io","fixed":["0.1.39"],"introduced":["0.0.0-0"],"last_affected":[],"package":"mimalloc","purl":"pkg:cargo/mimalloc","source":"RUSTSEC-2022-0094"}],"products":null,"published":"2022-11-23","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":"Incorrect memory alignment in mimalloc bindings can lead to memory corruption, crashes, or potential code execution in Rust applications.","url":"https://insights.sbomify.com/GHSA-g23h-7vf9-xc25/"}