{"id":"UBUNTU-CVE-2020-8021","details":"a Improper Access Control vulnerability in of Open Build Service allows remote attackers to read files of an OBS package where the sourceaccess/access is disabled This issue affects: Open Build Service versions prior to 2.10.5.","modified":"2026-05-20T16:06:24.842566344Z","published":"2020-05-19T15:15:00Z","upstream":["CVE-2020-8021"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8021"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1171649"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-8021"}],"affected":[{"package":{"name":"obs-build","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20141024-1","20141024-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"obs-build","binary_version":"20141024-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170201-3"],"ecosystem_specific":{"binaries":[{"binary_version":"20170201-3","binary_name":"obs-build"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20180831-3","20180831-3ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"20180831-3ubuntu1","binary_name":"obs-build"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20190710-1","20210120-1"],"ecosystem_specific":{"binaries":[{"binary_version":"20210120-1","binary_name":"obs-build"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20210120-4"],"ecosystem_specific":{"binaries":[{"binary_name":"obs-build","binary_version":"20210120-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20210120-4"],"ecosystem_specific":{"binaries":[{"binary_version":"20210120-4","binary_name":"obs-build"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.json"}},{"package":{"name":"obs-build","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/obs-build?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20210120-4","20210120-4build1"],"ecosystem_specific":{"binaries":[{"binary_name":"obs-build","binary_version":"20210120-4build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8021.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:L/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}