zoo is a file archiving utility for maintaining collections of files, written by Rahul Dhesi.
zoo is vulnerable to a new buffer overflow due to insecure use of the strcpy() function when trying to create an archive from certain directories or filenames.
An attacker could exploit this issue by enticing a user to create a zoo archive of specially crafted directories and filenames, possibly leading to the execution of arbitrary code with the rights of the user running zoo.
There is no known workaround at this time.
All zoo users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/zoo-2.10-r2"