Memory Consumption and Use-After-Free Vulnerability in Linux Kernel's mountpoint_last Function

CVE-2014-5045 · MEDIUM Severity

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

The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

Learn more about our Cis Benchmark Audit For Distribution Independent Linux.