trend-autoupdate.new in mailscanner 4.55.10 and other versions before 4.74.16-1 allows local users to overwrite arbitrary files via a symlink attack on a (1) /tmp/opr.ini.##### or (2) /tmp/lpt*.zip temporary file.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mailscanner | Debian | 4.55.10 (including) | 4.55.10 (including) |
| Mailscanner | Ubuntu | dapper | * |
| Mailscanner | Ubuntu | gutsy | * |
| Mailscanner | Ubuntu | hardy | * |
| Mailscanner | Ubuntu | intrepid | * |
| Mailscanner | Ubuntu | upstream | * |