{"id":"UBUNTU-CVE-2021-29482","details":"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.","modified":"2026-05-20T16:06:27.432241120Z","published":"2021-04-28T19:15:00Z","upstream":["CVE-2021-29482"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-29482"},{"type":"REPORT","url":"https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27"},{"type":"REPORT","url":"https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-29482"}],"affected":[{"package":{"name":"golang-github-ulikunitz-xz","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/golang-github-ulikunitz-xz?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-ulikunitz-xz-dev","binary_version":"0.5.6-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29482.json"}},{"package":{"name":"golang-github-ulikunitz-xz","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-ulikunitz-xz?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-ulikunitz-xz-dev","binary_version":"0.5.6-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29482.json"}},{"package":{"name":"golang-github-ulikunitz-xz","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-ulikunitz-xz?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-ulikunitz-xz-dev","binary_version":"0.5.6-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29482.json"}},{"package":{"name":"golang-github-ulikunitz-xz","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/golang-github-ulikunitz-xz?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-ulikunitz-xz-dev","binary_version":"0.5.6-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29482.json"}},{"package":{"name":"golang-github-ulikunitz-xz","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-ulikunitz-xz?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.6-2","0.5.15-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-ulikunitz-xz-dev","binary_version":"0.5.15-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29482.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}