Linux Kernel OverlayFS NULL Pointer Dereference Denial of Service Vulnerability

CVE-2019-10140 · MEDIUM Severity

AV:L/AC:L/AU:N/C:N/I:N/A:C

A vulnerability was found in Linux kernel's, versions up to 3.10, implementation of overlayfs. An attacker with local access can create a denial of service situation via NULL pointer dereference in ovl_posix_acl_create function in fs/overlayfs/dir.c. This can allow attackers with ability to create directories on overlayfs to crash the kernel creating a denial of service (DOS).

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