LibXcursor: User-assisted execution of arbitrary code

Background

X.Org X11 libXcursor runtime library.

Description

It was discovered that libXcursor is prone to several heap overflows when parsing malicious files.

Impact

A remote attacker, by enticing a user to process a specially crafted cursor file, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All LibXcursor users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=x11-libs/libXcursor-1.1.15"