Description
Stomper 5e2741e is vulnerable to Use-After-Free. When a single client repeatedly issues SUBSCRIBE commands for the same destination over one connection and then closes that connection, the broker performs incorrect cleanup of its internal subscription structures. This results in a heap use-after-free during StompClient destruction, causing the broker process to crash. An unauthenticated client can exploit this to reliably trigger a denial of service.
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | stomper | No fix yet | — |
| Ubuntu 26.04 LTS | stomper | No fix yet | — |
| Ubuntu 24.04 LTS | stomper | No fix yet | — |
| Ubuntu 22.04 LTS | stomper | No fix yet | — |
| Ubuntu 20.04 LTS | stomper | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | stomper | No fix yet | — |
| Ubuntu 16.04 LTS | stomper | No fix yet | — |