CVE catalog
CVE-2019-18625
UBUNTU-CVE-2019-18625
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.72% · Oct 25, 2026
An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | suricata | 13 | 1:5.0.2-1 | fixed |
| Debian | suricata | 14 | 1:5.0.2-1 | fixed |
| Debian | suricata | 8 | 2.0.7-2 | vulnerable |
| Debian | suricata | 8 | 2.0.7-2+deb8u1 | vulnerable |
| Debian | suricata | 8 | 2.0.7-2+deb8u2 | vulnerable |
| Debian | suricata | 8 | 2.0.7-2+deb8u3 | vulnerable |
| Debian | suricata | 8 | 2.0.7-2+deb8u4 | vulnerable |
| Debian | suricata | 8 | 2.0.7-2+deb8u5 | fixed |
| Ubuntu | suricata | 16.04 | 2.0.8-1build1 | vulnerable |
| Ubuntu | suricata | 16.04 | 2.0.9-1 | vulnerable |
| Ubuntu | suricata | 16.04 | 2.0.10-1 | vulnerable |
| Ubuntu | suricata | 16.04 | 2.0.10-2 | vulnerable |
| Ubuntu | suricata | 16.04 | 2.0.11-1 | vulnerable |
| Ubuntu | suricata | 16.04 | 3.0-1 | vulnerable |
| Ubuntu | suricata | 18.04 | 3.2-2ubuntu3 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | suricata | deb | 13 | 1:5.0.2-1 | Not reported | DEBIAN-CVE-2019-18625 | Not reported |
| Debian | suricata | deb | 14 | 1:5.0.2-1 | Not reported | DEBIAN-CVE-2019-18625 | Not reported |
| Debian | suricata | deb | 8 | 2.0.7-2+deb8u5 | Not reported | DLA-2087-1 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [suricata]Fixed
Details (4)
1:7.0.10-1+deb13u4· amd64 · trixieFixed · Fixed:
1:5.0.2-1pypi · suricata · debian · 13
1:7.0.10-1+deb13u4· arm64 · trixieFixed · Fixed:
1:5.0.2-1pypi · suricata · debian · 13
1:8.0.6-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
1:5.0.2-1pypi · suricata · debian · 13
1:8.0.6-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
1:5.0.2-1pypi · suricata · debian · 13
Observed: