CVE-2014-9717 REJECTED

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

EPSS 0.04% · 12.5th percentile

Risk Scores

EPSS Score
0.04%
12.5th percentile

Affected Products

VendorProductVersions
Ubuntu:14.04:LTSlinux-aws0
Ubuntu:16.04:LTSlinux0
Ubuntu:16.04:LTSlinux-gke0
Ubuntu:16.04:LTSlinux-hwe0
Ubuntu:16.04:LTSlinux-snapdragon0
Ubuntu:14.04:LTSlinux-lts-wily0
Ubuntu:16.04:LTSlinux-aws0
Ubuntu:16.04:LTSlinux-raspi20
Ubuntu:14.04:LTSlinux-lts-xenial0

Timeline

References

Open in Interactive Console →