CVE-2016-2337
Fixed in a distro release EPSS 6%
Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 8 | ruby2.1 | 2.1.5-2+deb8u5 |
| Ubuntu 14.04 LTS | ruby1.9.1 | 1.9.3.484-2ubuntu1.3 |
| Ubuntu 14.04 LTS | ruby2.0 | 2.0.0.484-1ubuntu2.4 |
| Ubuntu 16.04 LTS | ruby2.3 | 2.3.1-2~16.04.2 |