{"id":"UBUNTU-CVE-2019-12779","details":"libqb before 1.0.5 allows local users to overwrite arbitrary files via a symlink attack, because it uses predictable filenames (under /dev/shm and /tmp) without O_EXCL.","modified":"2026-04-22T12:08:36.308717Z","published":"2019-06-07T20:29:00Z","upstream":["CVE-2019-12779"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12779"},{"type":"REPORT","url":"https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4"},{"type":"REPORT","url":"https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-12779"}],"affected":[{"package":{"name":"libqb","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libqb@0.16.0.real-1ubuntu5?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.16.0.real-1ubuntu2","0.16.0.real-1ubuntu3","0.16.0.real-1ubuntu4","0.16.0.real-1ubuntu5"],"ecosystem_specific":{"binaries":[{"binary_version":"0.16.0.real-1ubuntu5","binary_name":"libqb0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12779.json"}},{"package":{"name":"libqb","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libqb@0.17.2.real-6ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.0-2ubuntu1","0.17.2.real-4ubuntu1","0.17.2.real-6ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.17.2.real-6ubuntu1","binary_name":"libqb0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12779.json"}},{"package":{"name":"libqb","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libqb@1.0.1-1ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.1-1ubuntu1","binary_name":"libqb0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12779.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}