Advisories for Gem/Rubyzip package

In Rubyzip, a crafted ZIP file can bypass application checks on ZIP entry sizes because data about the uncompressed size can be spoofed. This allows attackers to cause a denial of service (disk consumption).

The gem rubyzip contains a Directory Traversal vulnerability in Zip::File component that can result in write arbitrary files to the filesystem. This attack appear to be exploitable via If a site allows uploading of .zip files, an attacker can upload a malicious file that contains symlinks or files with absolute pathnames .. to write arbitrary files to the filesystem.

The Zip::File component in the rubyzip gem for Ruby has a directory traversal vulnerability. If a site allows uploading of .zip files, an attacker can upload a malicious file that uses ../ pathname substrings to write arbitrary files to the filesystem.