Description (CNA)
An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://github.com/sargun/fuse-example
- https://sourceforge.net/p/fuse/mailman/message/36598753/
- https://security.netapp.com/advisory/ntap-20200608-0001/
- http://www.openwall.com/lists/oss-security/2020/08/24/1
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.