A vulnerability was found in GNU Nano that allows a possible privilege escalation through an insecure temporary file. If Nano is killed while editing, a file it saves to an emergency file with the permissions of the running user provides a window of opportunity for attackers to escalate privileges through a malicious symlink.
Creating and using insecure temporary files can leave application and system data vulnerable to attack.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nano | Ubuntu | focal | * |
| Nano | Ubuntu | jammy | * |
| Nano | Ubuntu | mantic | * |
| Nano | Ubuntu | noble | * |
| Nano | Ubuntu | upstream | * |