Description
Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OISF | Suricata | 8.0.0 – < 8.0.7 | 8.0.7 |
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 | suricata | 1:8.0.7-1 | — |
| Debian 13 | suricata | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | suricata | No fix yet | — |
| Ubuntu 26.04 LTS | suricata | No fix yet | — |
| Ubuntu 24.04 LTS | suricata | No fix yet | — |
| Ubuntu 22.04 LTS | suricata | No fix yet | — |
| Ubuntu 18.04 LTS | suricata | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | suricata | No fix yet | — |