A certain Ubuntu build procedure for perf, as distributed in the Linux kernel packages in Ubuntu 10.04 LTS, 12.04 LTS, 12.10, 13.04, and 13.10, sets the HOME environment variable to the ~buildd directory and consequently reads the system configuration file from the ~buildd directory, which allows local users to gain privileges by leveraging control over the buildd account.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ubuntu_linux | Canonical | 10.04 (including) | 10.04 (including) |
| Ubuntu_linux | Canonical | 12.04 (including) | 12.04 (including) |
| Ubuntu_linux | Canonical | 12.10 (including) | 12.10 (including) |
| Ubuntu_linux | Canonical | 13.04 (including) | 13.04 (including) |
| Ubuntu_linux | Canonical | 13.10 (including) | 13.10 (including) |