{"id":"UBUNTU-CVE-2018-1049","details":"In systemd prior to 234 a race condition exists between .mount and .automount units such that automount requests from kernel may not be serviced by systemd resulting in kernel holding the mountpoint and any processes that try to use said mount will hang. A race condition like this may lead to denial of service, until mount points are unmounted.","modified":"2026-04-22T12:44:03.910759Z","published":"2018-01-17T00:00:00Z","related":["USN-3558-1"],"upstream":["CVE-2018-1049"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1049"},{"type":"REPORT","url":"https://github.com/systemd/systemd/pull/5916"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3558-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1049"}],"affected":[{"package":{"name":"systemd","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/systemd@204-5ubuntu20.26?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"204-5ubuntu20.26"}]}],"versions":["204-0ubuntu18","204-0ubuntu19","204-5ubuntu3","204-5ubuntu5","204-5ubuntu6","204-5ubuntu7","204-5ubuntu8","204-5ubuntu9","204-5ubuntu10","204-5ubuntu11","204-5ubuntu13","204-5ubuntu14","204-5ubuntu15","204-5ubuntu16","204-5ubuntu17","204-5ubuntu18","204-5ubuntu19","204-5ubuntu20","204-5ubuntu20.2","204-5ubuntu20.3","204-5ubuntu20.4","204-5ubuntu20.5","204-5ubuntu20.6","204-5ubuntu20.7","204-5ubuntu20.8","204-5ubuntu20.9","204-5ubuntu20.10","204-5ubuntu20.11","204-5ubuntu20.12","204-5ubuntu20.13","204-5ubuntu20.14","204-5ubuntu20.15","204-5ubuntu20.18","204-5ubuntu20.19","204-5ubuntu20.20","204-5ubuntu20.21","204-5ubuntu20.22","204-5ubuntu20.24","204-5ubuntu20.25"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-gudev-1.0","binary_version":"1:204-5ubuntu20.26"},{"binary_name":"libgudev-1.0-0","binary_version":"1:204-5ubuntu20.26"},{"binary_name":"libpam-systemd","binary_version":"204-5ubuntu20.26"},{"binary_name":"libsystemd-daemon0","binary_version":"204-5ubuntu20.26"},{"binary_name":"libsystemd-id128-0","binary_version":"204-5ubuntu20.26"},{"binary_name":"libsystemd-journal0","binary_version":"204-5ubuntu20.26"},{"binary_name":"libsystemd-login0","binary_version":"204-5ubuntu20.26"},{"binary_name":"libudev1","binary_version":"204-5ubuntu20.26"},{"binary_name":"python-systemd","binary_version":"204-5ubuntu20.26"},{"binary_name":"systemd","binary_version":"204-5ubuntu20.26"},{"binary_name":"systemd-services","binary_version":"204-5ubuntu20.26"},{"binary_name":"udev","binary_version":"204-5ubuntu20.26"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1049.json"}},{"package":{"name":"systemd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/systemd@229-4ubuntu21.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"229-4ubuntu21.1"}]}],"versions":["225-1ubuntu9","227-2ubuntu1","227-2ubuntu2","228-1ubuntu2","228-2ubuntu1","228-2ubuntu2","228-3ubuntu1","228-4ubuntu1","228-4ubuntu2","228-5ubuntu1","228-5ubuntu2","228-5ubuntu3","228-6ubuntu1","229-1ubuntu2","229-1ubuntu4","229-2ubuntu1","229-3ubuntu1","229-3ubuntu2","229-4ubuntu1","229-4ubuntu4","229-4ubuntu5","229-4ubuntu6","229-4ubuntu7","229-4ubuntu8","229-4ubuntu10","229-4ubuntu11","229-4ubuntu12","229-4ubuntu13","229-4ubuntu16","229-4ubuntu17","229-4ubuntu19","229-4ubuntu20","229-4ubuntu21"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"229-4ubuntu21.1","binary_name":"libnss-myhostname"},{"binary_name":"libnss-mymachines","binary_version":"229-4ubuntu21.1"},{"binary_name":"libnss-resolve","binary_version":"229-4ubuntu21.1"},{"binary_name":"libpam-systemd","binary_version":"229-4ubuntu21.1"},{"binary_name":"libsystemd0","binary_version":"229-4ubuntu21.1"},{"binary_name":"libudev1","binary_version":"229-4ubuntu21.1"},{"binary_name":"systemd","binary_version":"229-4ubuntu21.1"},{"binary_name":"systemd-container","binary_version":"229-4ubuntu21.1"},{"binary_name":"systemd-coredump","binary_version":"229-4ubuntu21.1"},{"binary_name":"systemd-journal-remote","binary_version":"229-4ubuntu21.1"},{"binary_version":"229-4ubuntu21.1","binary_name":"systemd-sysv"},{"binary_name":"udev","binary_version":"229-4ubuntu21.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1049.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}