{"id":"GHSA-2969-8hh9-57jc","summary":"Allocation of Resources Without Limits or Throttling in ckb","details":"An issue was discovered in the ckb crate before 0.40.0 for Rust. Remote attackers may be able to conduct a 51% attack against the Nervos CKB blockchain by triggering an inability to allocate memory for the misbehavior HashMap.","aliases":["CVE-2021-45699","GHSA-48vq-8jqv-gm6f","RUSTSEC-2021-0108"],"modified":"2023-11-08T04:07:22.625998Z","published":"2022-01-06T22:09:49Z","database_specific":{"cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2022-01-05T23:46:28Z","nvd_published_at":"2021-12-27T00:15:00Z"},"references":[{"type":"WEB","url":"https://github.com/nervosnetwork/ckb/security/advisories/GHSA-48vq-8jqv-gm6f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45699"},{"type":"PACKAGE","url":"https://github.com/nervosnetwork/ckb"},{"type":"WEB","url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ckb/RUSTSEC-2021-0108.md"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2021-0108.html"}],"affected":[{"package":{"name":"ckb","ecosystem":"crates.io","purl":"pkg:cargo/ckb"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.40.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/01/GHSA-2969-8hh9-57jc/GHSA-2969-8hh9-57jc.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}