In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.15 | sudo | 1.9.8, 1.9.0-r0, 1.9.1-r0 |
| Alpine:v3.14 | sudo | 1.7.0-r0, 1.7.1-r0, 1.7.2-r0 |