CVE-2019-18625 — Linux vulnerability

5 documents5 sources

Severity

7.5HIGHNVD

EPSS

0.3%

top 51.27%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Oisf Suricata Debian Linux

Timeline

PublishedJan 6

Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶Debianoisf/suricata< 1:5.0.2-1+3

▶NVDoisf/suricata5.0.0

Also affects: Debian Linux 8.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

GHSA

GHSA-h726-j7j2-xhpf: An issue was discovered in Suricata 5↗2022-05-24

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OSV

CVE-2019-18625: An issue was discovered in Suricata 5↗2020-01-06

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CVEList

CVE-2019-18625: An issue was discovered in Suricata 5↗2020-01-06

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📋Vendor Advisories

Debian

CVE-2019-18625: suricata - An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any t...↗2019

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