Debian/linux: medium 4.4
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were all
Action: Upgrade linux to 5.8.7-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.8.7-1 | - |
Fixed versions
| 5.8.7-1 |
Sources
- osv: DEBIAN-CVE-2020-16120#Debian:13/linux
- https://security-tracker.debian.org/tracker/CVE-2020-16120
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