DEBIAN-CVE-2018-6794

Source
https://security-tracker.debian.org/tracker/CVE-2018-6794
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2018-6794.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2018-6794
Upstream
Published
2018-02-07T05:29:00Z
Modified
2025-09-25T22:40:41Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.

References

Affected packages

Debian:11 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.0.4-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.0.4-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.0.4-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.0.4-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}