Description
Nanomsg versions 0.5-beta through 1.x before 1.2.3 has a remotely exploitable buffer overflow in the WebSocket transport, due to an unchecked copy of the Sec-WebSocket-Version header, through snprintf.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Nanomsg | Nanomsg | 0.5.0 – < 1.2.3 | 1.2.3 |
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 | nanomsg | No fix yet | — |
| Debian 13 | nanomsg | No fix yet | — |
| Debian 12 | nanomsg | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nanomsg | No fix yet | — |
| Ubuntu 26.04 LTS | nanomsg | No fix yet | — |
| Ubuntu 24.04 LTS | nanomsg | No fix yet | — |
| Ubuntu 22.04 LTS | nanomsg | No fix yet | — |
| Ubuntu 20.04 LTS | nanomsg | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | nanomsg | No fix yet | — |
| Ubuntu 16.04 LTS | nanomsg | No fix yet | — |