sandbox is a Gentoo Linux utility used by the Portage package management system.
The Gentoo Linux Security Audit Team discovered that the sandbox utility was vulnerable to multiple TOCTOU (Time of Check, Time of Use) file creation race conditions.
Local users may be able to create or overwrite arbitrary files with the permissions of the root user.
There is no known workaround at this time.
All sandbox users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/sandbox-1.2.11"