Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Version 8.0.0's usage of the tls.subjectaltname keyword can lead to a segmentation fault when the decoded subjectaltname contains a NULL byte. This issue is fixed in version 8.0.1. To workaround this issue, disable rules using the tls.subjectaltname keyword.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OISF | suricata | >= 8.0.0, < 8.0.1 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | suricata | No fix yet | — |
| Ubuntu 26.04 LTS | suricata | No fix yet | — |
| Ubuntu 25.10 | suricata | No fix yet | — |
| Ubuntu 24.04 LTS | suricata | No fix yet | — |
| Ubuntu 22.04 LTS | suricata | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 | 8.0.1-1.1 | openSUSE-SU-2025:15592-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | suricata | 8.0.1-r0 | — |
Advisories 1
- openSUSE-SU-2025:15592-1 libsuricata8_0_1-8.0.1-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026