{"id":"GHSA-8c7c-2c8j-3xfp","summary":"blosc2 heap-based buffer overflow","details":"blosc2.c in Blosc C-Blosc2 through 2.0.0.beta.5 has a heap-based buffer overflow when there is a lack of space to write compressed data.","aliases":["CVE-2020-29367"],"modified":"2026-06-10T18:42:41Z","published":"2022-05-24T17:35:03Z","database_specific":{"cwe_ids":["CWE-787"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2024-11-21T22:19:07Z","nvd_published_at":"2020-11-27T20:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-29367"},{"type":"WEB","url":"https://github.com/Blosc/c-blosc2/commit/c4c6470e88210afc95262c8b9fcc27e30ca043ee"},{"type":"WEB","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26442"},{"type":"PACKAGE","url":"https://github.com/Blosc/python-blosc2"},{"type":"WEB","url":"https://github.com/Blosc/python-blosc2/releases/tag/v0.1.7"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/blosc2/PYSEC-2020-343.yaml"}],"affected":[{"package":{"name":"blosc2","ecosystem":"PyPI","purl":"pkg:pypi/blosc2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.7"}]}],"versions":["0.1.1","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-8c7c-2c8j-3xfp/GHSA-8c7c-2c8j-3xfp.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}