{"id":"CVE-2021-29482","state":"PUBLISHED","title":"denial of service in github.com/ulikunitz/xz","description":"xz 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. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.","publishedAt":"2021-04-28T18:15:15.000Z","updatedAt":"2024-08-03T22:11:05.477Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["ulikunitz xz"],"affected":[{"vendor":"ulikunitz","product":"xz","versions":[{"version":"< 0.5.8","status":"affected"}]}],"references":["https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27","https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b"],"weaknesses":["CWE-835"],"ingestedAt":"2026-10-29T19:48:21.578Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/29xxx/CVE-2021-29482.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-29482","state":"PUBLISHED","datePublished":"2021-04-28T18:15:15.000Z","dateUpdated":"2024-08-03T22:11:05.477Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-03-30T00:00:00.000Z"},"containers":{"cna":{"title":"denial of service in github.com/ulikunitz/xz","descriptions":[{"lang":"en","value":"xz 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. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated."}],"affected":[{"vendor":"ulikunitz","product":"xz","versions":[{"version":"< 0.5.8","status":"affected"}]}],"references":[{"url":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-835","description":"{\"CWE-835\":\"Loop with Unreachable Exit Condition ('Infinite Loop')\"}","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2021-04-28T18:15:15.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-25xm-hr59-7c27","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-29482","STATE":"PUBLIC","TITLE":"denial of service in github.com/ulikunitz/xz"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"xz","version":{"version_data":[{"version_value":"< 0.5.8"}]}}]},"vendor_name":"ulikunitz"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"xz 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. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"{\"CWE-835\":\"Loop with Unreachable Exit Condition ('Infinite Loop')\"}"}]}]},"references":{"reference_data":[{"name":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27","refsource":"CONFIRM","url":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27"},{"name":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b","refsource":"MISC","url":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b"}]},"source":{"advisory":"GHSA-25xm-hr59-7c27","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T22:11:05.477Z"}}]}}}