RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "ri1.9.1": "1.9.3.484-2ubuntu1.5", "ruby1.9.1-dbgsym": "1.9.3.484-2ubuntu1.5", "libruby1.9.1-dbg": "1.9.3.484-2ubuntu1.5", "libtcltk-ruby1.9.1-dbgsym": "1.9.3.484-2ubuntu1.5", "libtcltk-ruby1.9.1": "1.9.3.484-2ubuntu1.5", "libruby1.9.1": "1.9.3.484-2ubuntu1.5", "ruby1.9.1-dev-dbgsym": "1.9.3.484-2ubuntu1.5", "libruby1.9.1-dbgsym": "1.9.3.484-2ubuntu1.5", "ruby1.9.1-dev": "1.9.3.484-2ubuntu1.5", "ruby1.9.3": "1.9.3.484-2ubuntu1.5", "ruby1.9.1-full": "1.9.3.484-2ubuntu1.5", "ruby1.9.1-examples": "1.9.3.484-2ubuntu1.5", "ruby1.9.1": "1.9.3.484-2ubuntu1.5" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libruby2.0-dbgsym": "2.0.0.484-1ubuntu2.10", "libruby2.0": "2.0.0.484-1ubuntu2.10", "ruby2.0-tcltk-dbgsym": "2.0.0.484-1ubuntu2.10", "ruby2.0-doc": "2.0.0.484-1ubuntu2.10", "ruby2.0-dev": "2.0.0.484-1ubuntu2.10", "ruby2.0-dbgsym": "2.0.0.484-1ubuntu2.10", "ruby2.0-tcltk": "2.0.0.484-1ubuntu2.10", "ruby2.0": "2.0.0.484-1ubuntu2.10" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libruby2.3-dbgsym": "2.3.1-2~16.04.6", "ruby2.3-tcltk": "2.3.1-2~16.04.6", "ruby2.3-dev-dbgsym": "2.3.1-2~16.04.6", "libruby2.3-dbg": "2.3.1-2~16.04.6", "ruby2.3-dev": "2.3.1-2~16.04.6", "ruby2.3-dbgsym": "2.3.1-2~16.04.6", "libruby2.3": "2.3.1-2~16.04.6", "ruby2.3-tcltk-dbgsym": "2.3.1-2~16.04.6", "ruby2.3": "2.3.1-2~16.04.6", "ruby2.3-doc": "2.3.1-2~16.04.6" } ] }