Amavis before 2.12.3 and 2.13.x before 2.13.1, in part because of its use of MIME-tools, has an Interpretation Conflict (relative to some mail user agents) when there are multiple boundary parameters in a MIME email message. Consequently, there can be an incorrect check for banned files or malware.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade amavis | Aug 8, 2025 | Mar 18, 2024 |
| Debian | — | Upgrade amavisd-new | Jul 30, 2024 | Mar 18, 2024 |
| Freebsd | — | Upgrade amavisd-new | Dec 10, 2025 | Mar 17, 2024 |
| Ubuntu | — | Upgrade amavisd-new | Jun 6, 2024 | Mar 18, 2024 |
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