NVClock: Insecure file usage

Background

NVClock is an utility for changing NVidia graphic chipsets internal frequency.

Description

Tavis Ormandy of the Gentoo Linux Security Team discovered that NVClock makes usage of an insecure temporary file in the /tmp directory.

Impact

A local attacker could create a specially crafted temporary file in /tmp to execute arbitrary code with the privileges of the user running NVCLock.

Workaround

There is no known workaround at this time.

Resolution

All NVClock users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-video/nvclock-0.7-r2"