mailscanner 4.68.8 and other versions before 4.74.16-1 might allow local users to overwrite arbitrary files via a symlink attack on certain temporary files used by the (1) f-prot-autoupdate, (2) clamav-autoupdate, (3) avast-autoupdate, and (4) f-prot-6-autoupdate scripts in /etc/MailScanner/autoupdate/; the (5) bitdefender-wrapper, (6) kaspersky-wrapper, (7) clamav-wrapper, and (8) rav-wrapper scripts in /etc/MailScanner/wrapper/; the (9) Quarantine.pm, (10) TNEF.pm, (11) MessageBatch.pm, (12) WorkArea.pm, and (13) SA.pm scripts in /usr/share/MailScanner/MailScanner/; (14) /usr/sbin/MailScanner; and (15) scripts that load the /etc/MailScanner/mailscanner.conf.with.mcp configuration 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 | Mailscanner | 4.68.8 (including) | 4.68.8 (including) |
| Mailscanner | Mailscanner | 4.68.8-1 (including) | 4.68.8-1 (including) |
| Mailscanner | Mailscanner | 4.69.9-3 (including) | 4.69.9-3 (including) |
| Mailscanner | Mailscanner | 4.70.7-1 (including) | 4.70.7-1 (including) |
| Mailscanner | Mailscanner | 4.71.10-1 (including) | 4.71.10-1 (including) |
| Mailscanner | Mailscanner | 4.72.5-1 (including) | 4.72.5-1 (including) |
| Mailscanner | Mailscanner | 4.73.4-2 (including) | 4.73.4-2 (including) |
| Mailscanner | Ubuntu | dapper | * |
| Mailscanner | Ubuntu | gutsy | * |
| Mailscanner | Ubuntu | hardy | * |
| Mailscanner | Ubuntu | intrepid | * |
| Mailscanner | Ubuntu | upstream | * |