CVE-2019-20794 kernel: task processes not being properly ended could lead to resource exhaustion

[Rohit Keshri <rkeshri () redhat com>]

Hello Team,

Red Hat has identified a vulnerability with the following details.

A flaw was found when a user with PID namespace mounting a FUSE filesystem,
If the userspace component is terminated (pid 1), this results into a
denial of service (DoS) problem. This internally makes the fuse requests go
into Uninterruptible state until the system is rebooted.


'CVE-2019-20794' was assigned via MITRE.

Reference:

https://github.com/sargun/fuse-example


Thank you
..
Rohit Keshri / Red Hat Product Security Team
PGP: OX01BC 858A 07B7 15C8 EF33 BFE2 2EEB 0CBC 84A4 4C2D

secalert () redhat com for urgent response