UBUNTU-CVE-2019-18625

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Source
https://ubuntu.com/security/CVE-2019-18625
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18625.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-18625
Related
Published
2020-01-06T21:15:00Z
Modified
2025-01-13T10:22:01Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata@3.0-1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.8-1build1
2.0.9-1
2.0.10-1
2.0.10-2
2.0.11-1

3.*

3.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata@3.2-2ubuntu3?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.2-2ubuntu3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}