Description
stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.
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 | — |