Ark: Arbitrary code execution

Background

Ark is a graphical file compression/decompression utility with support for multiple formats.

Description

A maliciously crafted archive with “…/” in the file path(s) could install files anywhere in the user’s home directory upon extraction.

Impact

A remote attacker could entice a user to open a specially crafted archive using Ark, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

Avoid opening untrusted archives.

Resolution

All Ark users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=kde-apps/ark-20.04.3-r1"