CVE-2019-20794
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- n/a
ADP Enrichment
CVE Program Container
Additional 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
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
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