Is CVE-2019-18625 in the CISA KEV catalog?

No. CVE-2019-18625 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-18625?

CVE-2019-18625 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-18625?

CVE-2019-18625 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-18625?

Upgrade suricata on debian 11 to 1:5.0.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-18625

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

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.

How to fix

Remediation Available

suricataDebian

Fixed in:1:5.0.2-1CVE-2019-18625

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch2

Third-Party Advisory3

Embed a live status badge for CVE-2019-18625

Markdown

[![CVE-2019-18625](https://tridentstack.com/cve/badge/CVE-2019-18625.svg)](https://tridentstack.com/cve/CVE-2019-18625)

HTML

<a href="https://tridentstack.com/cve/CVE-2019-18625"><img src="https://tridentstack.com/cve/badge/CVE-2019-18625.svg" alt="CVE-2019-18625"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.