Description
Prosody before 0.10.0 allows remote attackers to cause a denial of service (application crash), related to an incompatibility with certain versions of the LuaSocket library, such as the lua-socket package from Debian stretch. The attacker needs to trigger a stream error. A crash can be observed in, for example, the c2s module.
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 | prosody | 0.10.0-1 | — |
| Debian 13 | prosody | 0.10.0-1 | — |
| Debian 12 | prosody | 0.10.0-1 | — |
| Debian 9 | prosody | 0.9.12-2+deb9u1 | DSA-4198-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | prosody | No fix yet | — |
Advisories 1
- DSA-4198-1 prosody - security update Debian Security (DSA / DLA) · Mar 9, 2026