CVE Vulnerability Advisory Database
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2023-03-22
Linux Kernel OverlayFS Local Privilege Escalation Vulnerability (CVE-2023-0386) Analysis and Mitigation Guide
[Affected Scope] Systems and container environments utilizing the Linux kernel OverlayFS subsystem
[Impact] A local attacker can escalate privileges to root by copying a setuid/capable file from a nosuid mount into another mount
[Mitigation] Apply the latest kernel security patches from your distribution or restrict unprivileged user namespaces as a temporary workaround