Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | amavisd-new | 1:2.13.0-5 | — |
| Debian 13 | amavisd-new | 1:2.13.0-5 | — |
| Debian 12 | amavisd-new | 1:2.13.0-3+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | amavisd-new | 1:2.13.0-6ubuntu1 | — |
| Ubuntu 24.04 LTS | amavisd-new | 1:2.13.0-3ubuntu2 | USN-6790-1 |
| Ubuntu 22.04 LTS | amavisd-new | 1:2.12.2-1ubuntu1.1 | USN-6790-1 |
| Ubuntu 20.04 LTS | amavisd-new | 1:2.11.0-6.1ubuntu1.1 | USN-6790-1 |
| Ubuntu 18.04 LTS | amavisd-new | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | amavisd-new | No fix yet | — |
| Ubuntu 14.04 LTS | amavisd-new | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | amavis | 2.13.1-r0 | — |
| Alpine v3.23 | amavis | 2.13.1-r0 | — |
| Alpine v3.22 | amavis | 2.13.1-r0 | — |
Advisories 1
- USN-6790-1 amavisd-new vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
References
- https://www.amavis.org/release-notes.txt
- https://metacpan.org/pod/MIME::Tools
- https://gitlab.com/amavis/amavis/-/issues/112
- https://gitlab.com/amavis/amavis/-/raw/v2.13.1/README_FILES/README.CVE-2024-28054
- https://lists.amavis.org/pipermail/amavis-users/2024-March/006811.html
- FEDORA-2024-1d87055861 vendor-advisory
- FEDORA-2024-3cf9eb64ba vendor-advisory
- FEDORA-2024-8bbcae6af2 vendor-advisory