CVE-2019-18625 describes a bypass vulnerability in Suricata 5.0.0, allowing attackers to evade TCP-based signatures by manipulating TCP session closure. An attacker can inject RST ACK and FIN ACK packets with malformed TCP Timestamp options after a SYN packet, which client systems (Linux and Windows) will ignore, effectively faking a closed session. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that could lead to high integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0.0CPE matchmatch criteria | cpe:2.3:a:oisf:suricata:5.0.0:-:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.