{"id":"UBUNTU-CVE-2023-1672","details":"A race condition exists in the Tang server functionality for key generation and key rotation. This flaw results in a small time window where Tang private keys become readable by other processes on the same host.","modified":"2026-02-04T04:17:10.287155Z","published":"2023-07-11T12:15:00Z","related":["USN-6489-1"],"upstream":["CVE-2023-1672"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1672"},{"type":"REPORT","url":"https://seclists.org/oss-sec/2023/q2/231"},{"type":"REPORT","url":"https://github.com/latchset/tang/pull/123/commits/05b12d14f7945b898235558af0bbaa43c582ccdd"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-1672"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6489-1"}],"affected":[{"package":{"name":"tang","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tang@6-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6-1ubuntu0.1~esm1"}]}],"versions":["6-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"tang","binary_version":"6-1ubuntu0.1~esm1"},{"binary_name":"tang-nagios","binary_version":"6-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1672.json"}},{"package":{"name":"tang","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/tang@7-1ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7-1ubuntu0.2"}]}],"versions":["7-1build1","7-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"tang","binary_version":"7-1ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1672.json"}},{"package":{"name":"tang","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/tang@11-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11-1ubuntu0.1"}]}],"versions":["8-3","10-3","10-4","11-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"tang","binary_version":"11-1ubuntu0.1"},{"binary_name":"tang-common","binary_version":"11-1ubuntu0.1"},{"binary_name":"tang-xinetd","binary_version":"11-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1672.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}