Description
The mono package before 6.8.0.105+dfsg-3.3 for Debian allows arbitrary code execution because the application/x-ms-dos-executable MIME type is associated with an un-sandboxed Mono CLR interpreter.
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 | mono | 6.8.0.105+dfsg-3.3 | — |
| Debian 13 | mono | 6.8.0.105+dfsg-3.3 | — |
| Debian 12 | mono | 6.8.0.105+dfsg-3.3 | — |
| Debian 10 | mono | 5.18.0.240+dfsg-3+deb10u1 | DLA-3343-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | mono | No fix yet | — |
| Ubuntu 20.04 LTS | mono | No fix yet | — |
| Ubuntu 18.04 LTS | mono | No fix yet | — |
| Ubuntu 16.04 LTS | mono | No fix yet | — |
| Ubuntu 14.04 LTS | mono | No fix yet | — |
Advisories 2
- DLA-3343-1 mono - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2023-0454 Mono: Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Feb 26, 2023