The extract_files function in installer.rb in RubyGems before 0.9.1 does not check whether files exist before overwriting them, which allows user-assisted remote attackers to overwrite arbitrary files, cause a denial of service, or execute arbitrary code via crafted GEM packages.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Rubygems | Rubyforge | * | 0.9.0 (including) |
Rubygems | Rubyforge | 0.8.11 (including) | 0.8.11 (including) |
Libgems-ruby | Ubuntu | devel | * |
Libgems-ruby | Ubuntu | feisty | * |
Libgems-ruby | Ubuntu | gutsy | * |
Libgems-ruby | Ubuntu | hardy | * |