Google Chrome before 24.0.1312.52 on Linux uses weak permissions for shared memory segments, which has unspecified impact and attack vectors.
https://code.google.com/p/chromium/issues/detail?id=143859
http://lists.opensuse.org/opensuse-updates/2013-02/msg00005.html
http://googlechromereleases.blogspot.com/2013/01/stable-channel-update.html