util-linux: User-assisted execution of arbitrary code

util-linux: User-assisted execution of arbitrary code A vulnerability was discovered in util-linux, which could potentially lead to the execution of arbitrary code. util-linux 2018-03-07 2018-03-07 649812 local, remote 2.30.2-r1 2.30.2-r1

util-linux is a suite of Linux programs including mount and umount, programs used to mount and unmount filesystems.

It was discovered that the umount bash-completion as provided by util-linux does not escap mount point paths.

An attacker controlling a volume label could entice a user with privileges to mount/umount filesystems to use umount command with auto completion, possibly resulting in execution of arbitrary code with root privileges.

Disable Bash-completion or remove “/usr/share/bash-completion/completions/umount”.

All util-linux users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-apps/util-linux-2.30.2-r1"

CVE-2018-7738 whissi whissi