{"id":"GHSA-25xm-hr59-7c27","summary":"github.com/ulikunitz/xz fixes readUvarint Denial of Service (DoS)","details":"### Impact\n\nxz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input.\n\n### Patches\n\nThe problem has been fixed in release v0.5.8.\n\n### Workarounds\n\nLimit the size of the compressed file input to a reasonable size for your use case.\n\n### References\n\nThe standard library had recently the same issue and got the [CVE-2020-16845](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16845) allocated.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [xz](https://github.com/ulikunitz/xz/issues).","aliases":["CVE-2021-29482","GO-2020-0016"],"modified":"2026-05-07T05:02:24.384838509Z","published":"2021-05-25T18:39:37Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2021-05-24T17:52:22Z","nvd_published_at":"2021-04-28T19:15:00Z","cwe_ids":["CWE-835"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29482"},{"type":"WEB","url":"https://github.com/ulikunitz/xz/issues/35"},{"type":"WEB","url":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2020-0016"}],"affected":[{"package":{"name":"github.com/ulikunitz/xz","ecosystem":"Go","purl":"pkg:golang/github.com/ulikunitz/xz"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.5.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-25xm-hr59-7c27/GHSA-25xm-hr59-7c27.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"}]}