{"answers":{"affected":"5 open source packages ship an affected version, including crypto2. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-45709 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-45709 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-45709 is a critical memory corruption vulnerability in n/a, published on 26 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45709 and fix it if it is affected.\n\nWhat it is: CVE-2021-45709 is a critical memory corruption vulnerability in n/a, published on 26 Dec 2021. 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-2021-45709 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- crypto2 (crates.io): affected all versions up to 0.1.2; no fix listed\n- crypto2 (crates.io): affected all versions up to 0.1.2; no fix listed\n- crypto2 (crates.io): affected all versions up to 0.1.2; no fix listed\n- crypto2 (crates.io): affected all versions up to 0.1.2; no fix listed\n- crypto2 (crates.io): affected from 0.0.0-0; 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/CVE-2021-45709/ (Markdown: https://insights.sbomify.com/CVE-2021-45709/index.md)","id":"CVE-2021-45709","markdown":"https://insights.sbomify.com/CVE-2021-45709/index.md","name":"CVE-2021-45709","record":{"aliases":["GHSA-9hfg-pxr6-q4vp","GHSA-pmcv-mgcf-rvxg","RUSTSEC-2021-0121"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust crypto2 crate","requires_auth":"none","summary":"An unaligned memory read in the crypto2 crate can cause a crash during Chacha20 operations, leading to denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"crypto2","vendor":"crypto2_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-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"An issue was discovered in the crypto2 crate through 2021-10-08 for Rust. During Chacha20 encryption and decryption, an unaligned read of a u32 may occur.","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":false,"headline":"Use of a Broken or Risky Cryptographic Algorithm in crypto2","id":"CVE-2021-45709","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":5,"n_references":2,"next":{"headline":"Race Condition in tokio","id":"CVE-2021-45710"},"packages":[{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.1.2"],"package":"crypto2","purl":null,"source":"GHSA-9hfg-pxr6-q4vp"},{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.1.2"],"package":"crypto2","purl":"pkg:cargo/crypto2","source":"GHSA-9hfg-pxr6-q4vp"},{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.1.2"],"package":"crypto2","purl":null,"source":"GHSA-pmcv-mgcf-rvxg"},{"ecosystem":"crates.io","fixed":[],"introduced":["0"],"last_affected":["0.1.2"],"package":"crypto2","purl":"pkg:cargo/crypto2","source":"GHSA-pmcv-mgcf-rvxg"},{"ecosystem":"crates.io","fixed":[],"introduced":["0.0.0-0"],"last_affected":[],"package":"crypto2","purl":"pkg:cargo/crypto2","source":"RUSTSEC-2021-0121"}],"prev":{"headline":"Abomonation transmutes \u0026T to and from \u0026[u8] without sufficient constraints","id":"CVE-2021-45708"},"products":["n/a"],"published":"2021-12-26","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":"An unaligned memory read in the crypto2 crate can cause a crash during Chacha20 operations, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2021-45709/"}