sysstat is a package containing a number of performance monitoring utilities for Linux, including sar, mpstat, iostat and sa tools
There are two vulnerabilities in the way sysstat handles symlinks:
Both vulnerabilities may allow an attacker to overwrite arbitrary files under the permissions of the user executing any of the affected utilities.
A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.
Systat users should upgrade to version 4.2 or later:
# emerge sync # emerge -pv ">=app-admin/sysstat-5.0.2" # emerge ">=app-admin/sysstat-5.0.2"