| Name | CVE-2026-22258 |
| Description | Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, crafted DCERPC traffic can cause Suricata to expand a buffer w/o limits, leading to memory exhaustion and the process getting killed. While reported for DCERPC over UDP, it is believed that DCERPC over TCP and SMB are also vulnerable. DCERPC/TCP in the default configuration should not be vulnerable as the default stream depth is limited to 1MiB. Versions 8.0.3 and 7.0.14 contain a patch. Some workarounds are available. For DCERPC/UDP, disable the parser. For DCERPC/TCP, the `stream.reassembly.depth` setting will limit the amount of data that can be buffered. For DCERPC/SMB, the `stream.reassembly.depth` can be used as well, but is set to unlimited by default. Imposing a limit here may lead to loss of visibility in SMB. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| suricata (PTS) | bullseye | 1:6.0.1-3 | vulnerable |
| bullseye (security) | 1:6.0.1-3+deb11u1 | vulnerable | |
| bookworm | 1:6.0.10-1 | vulnerable | |
| trixie | 1:7.0.10-1+deb13u2 | vulnerable | |
| forky, sid | 1:8.0.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| suricata | source | (unstable) | 1:8.0.3-1 |
https://github.com/OISF/suricata/security/advisories/GHSA-289c-h599-3xcx
https://github.com/OISF/suricata/commit/39d8c302af3422a096b75474a4f295a754ec6a74 (suricata-8.0.3)
https://github.com/OISF/suricata/commit/f82a388d0283725cb76782cf64e8341cab370830 (suricata-7.0.14)