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.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
| Link | Tags |
|---|---|
| http://www.securitytracker.com/id/1041520 | vdb entry third party advisory |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00017.html | third party advisory mailing list |
| https://access.redhat.com/errata/RHSA-2018:0260 | third party advisory vendor advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1534701 | issue tracking third party advisory patch |
| https://usn.ubuntu.com/3558-1/ | third party advisory vendor advisory |