Description
In LXC 2.0, many template scripts download code over cleartext HTTP, and omit a digital-signature check, before running it to bootstrap containers.
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 | lxc | 1:3.0.3-1 | — |
| Debian 14 | lxc-templates | No fix yet | — |
| Debian 13 | lxc | 1:3.0.3-1 | — |
| Debian 13 | lxc-templates | No fix yet | — |
| Debian 12 | lxc | 1:3.0.3-1 | — |
| Debian 12 | lxc-templates | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | lxc-templates | No fix yet | — |
| Ubuntu 26.04 LTS | lxc-templates | No fix yet | — |
| Ubuntu 25.10 | lxc-templates | No fix yet | — |
| Ubuntu 24.04 LTS | lxc-templates | No fix yet | — |
| Ubuntu 22.04 LTS | lxc-templates | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | lxc-templates | No fix yet | — |
| Ubuntu 18.04 LTS | lxc-templates | No fix yet | — |
| Ubuntu 14.04 LTS | lxc | No fix yet | — |
| Ubuntu Pro 16.04 LTS | lxc | No fix yet | — |