UBUNTU-CVE-2026-45751

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-45751
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-45751
Upstream
Published
2026-09-14T00:00:00Z
Modified
2026-09-14T11:17:31Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a specific network traffic processing, and requires a specific but not malicious rule. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, avoid rules that chain dotprefix transform after another one.

References

Affected packages

Ubuntu:16.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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 

{
    "binaries": [
        {
            "binary_name": "suricata",
            "binary_version": "3.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json"

Ubuntu:18.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.2-2ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libhtp-0.5.23-1",
            "binary_version": "3.2-2ubuntu3"
        },
        {
            "binary_name": "suricata",
            "binary_version": "3.2-2ubuntu3"
        },
        {
            "binary_name": "suricata-hyperscan",
            "binary_version": "3.2-2ubuntu3"
        },
        {
            "binary_name": "suricata-oinkmaster",
            "binary_version": "3.2-2ubuntu3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json"

Ubuntu:22.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:6.*
1:6.0.4-2
1:6.0.4-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "suricata",
            "binary_version": "1:6.0.4-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json"

Ubuntu:24.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata?arch=source&distro=noble

Affected ranges

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

Affected versions

1:7.*
1:7.0.0-2
1:7.0.2-1
1:7.0.2-1build1
1:7.0.3-1build1
1:7.0.3-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "suricata",
            "binary_version": "1:7.0.3-1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json"

Ubuntu:26.04:LTS / suricata

Package

Name
suricata
Purl
pkg:deb/ubuntu/suricata?arch=source&distro=resolute

Affected ranges

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

Affected versions

1:7.*
1:7.0.10-1
1:8.*
1:8.0.1-3build1
1:8.0.2-1
1:8.0.2-1build1
1:8.0.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "suricata",
            "binary_version": "1:8.0.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45751.json"