CVE - CVE-2019-20794

CVE-ID
CVE-2019-20794	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20200608-0001/ MISC:https://github.com/sargun/fuse-example MISC:https://sourceforge.net/p/fuse/mailman/message/36598753/ MLIST:[oss-security] 20200824 CVE-2019-20794 kernel: task processes not being properly ended could lead to resource exhaustion URL:http://www.openwall.com/lists/oss-security/2020/08/24/1
Assigning CNA
MITRE Corporation
Date Record Created
20200509	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200509)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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