Description
Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OISF | suricata | < 7.0.14, >= 8.0.0, < 8.0.3 | — |
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 | suricata | 1:8.0.3-1 | — |
| Debian 13 | suricata | 1:7.0.10-1+deb13u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | 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 | — |
| Ubuntu 16.04 LTS | suricata | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | suricata | 8.0.3-1.1 | openSUSE-SU-2026:10082-1 |
Advisories 1
- openSUSE-SU-2026:10082-1 libsuricata8_0_3-8.0.3-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026