Description
Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.
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 | 3.2.1-1 | — |
| Debian 13 | suricata | 3.2.1-1 | — |
| Debian 8 | suricata | 2.0.7-2+deb8u3 | DLA-1603-1 |
| Debian 7 | suricata | 1.2.1-2+deb7u1 | DLA-865-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | suricata | No fix yet | — |
| Ubuntu 16.04 LTS | suricata | No fix yet | — |
Advisories 2
- DLA-865-1 suricata - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1603-1 suricata - security update Debian Security (DSA / DLA) · Mar 9, 2026