CVE-2019-18625

Name	CVE-2019-18625
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2087-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
suricata (PTS)	bullseye	1:6.0.1-3	fixed
	bookworm	1:6.0.10-1	fixed
	sid, trixie	1:7.0.8-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
suricata	source	experimental	1:5.0.1-1~exp1
suricata	source	jessie	2.0.7-2+deb8u5	DLA-2087-1
suricata	source	(unstable)	1:5.0.2-1

Notes

[buster] - suricata <no-dsa> (Minor issue)
[stretch] - suricata <no-dsa> (Minor issue)
https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318 (suricata-5.0.1)
https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0 (master-4.1.x)
https://redmine.openinfosecfoundation.org/issues/3286
https://redmine.openinfosecfoundation.org/issues/3395