{"id":"UBUNTU-CVE-2026-73584","details":"A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the `/tmp` directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.","modified":"2026-08-19T11:11:14Z","published":"2026-08-13T13:19:00Z","upstream":["CVE-2026-73584"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-73584"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-73584"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-73584"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2462721"}],"affected":[{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.8-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"sfcb","binary_version":"1.4.8-0ubuntu2"},{"binary_name":"sfcb-test","binary_version":"1.4.8-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}},{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-0ubuntu1","1.4.9-0ubuntu3","1.4.9-0ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_name":"sfcb","binary_version":"1.4.9-0ubuntu5"},{"binary_version":"1.4.9-0ubuntu5","binary_name":"sfcb-test"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}},{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-0ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_name":"sfcb","binary_version":"1.4.9-0ubuntu5"},{"binary_name":"sfcb-test","binary_version":"1.4.9-0ubuntu5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}},{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-0ubuntu5","1.4.9-0ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_name":"sfcb","binary_version":"1.4.9-0ubuntu7"},{"binary_version":"1.4.9-0ubuntu7","binary_name":"sfcb-test"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}},{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-0ubuntu7","1.4.9-0ubuntu9","1.4.9-0ubuntu10"],"ecosystem_specific":{"binaries":[{"binary_name":"sfcb","binary_version":"1.4.9-0ubuntu10"},{"binary_name":"sfcb-test","binary_version":"1.4.9-0ubuntu10"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}},{"package":{"name":"sblim-sfcb","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-0ubuntu10"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.9-0ubuntu10","binary_name":"sfcb"},{"binary_name":"sfcb-test","binary_version":"1.4.9-0ubuntu10"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}