UBUNTU-CVE-2026-40342

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Source
https://ubuntu.com/security/CVE-2026-40342
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40342
Upstream
Published
2026-04-17T20:16:00Z
Modified
2026-05-20T16:25:40.077389143Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the external engine plugin loader concatenates a user-supplied engine name into a filesystem path without filtering path separators or .. components. An authenticated user with CREATE FUNCTION privileges can use a crafted ENGINE name to load an arbitrary shared library from anywhere on the filesystem via path traversal. The library's initialization code executes immediately during loading, before Firebird validates the module, achieving code execution as the server's OS account. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

References

Affected packages

Ubuntu:18.04:LTS
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.0.2.32703.ds4-9
3.0.2.32703.ds4-11ubuntu1
3.0.2.32703.ds4-11ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "3.0.2.32703.ds4-11ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
Ubuntu:20.04:LTS
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=focal

Affected ranges

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

Affected versions

3.*
3.0.5.33100.ds4-3
3.0.5.33189.ds4-1
3.0.5.33209.ds4-1
3.0.5.33220.ds4-1
3.0.5.33220.ds4-1build1
3.0.5.33220.ds4-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "3.0.5.33220.ds4-1build2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "3.0.5.33220.ds4-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
Ubuntu:22.04:LTS
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.0.7.33374.ds4-2
3.0.8.33535.ds4-1ubuntu1
3.0.8.33535.ds4-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "3.0.8.33535.ds4-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
Ubuntu:24.04:LTS
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.0.11.33637.ds4-2ubuntu1
3.0.11.33637.ds4-2ubuntu2
3.0.11.33703.ds4-2ubuntu1
3.0.11.33703.ds4-2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "3.0.11.33703.ds4-2ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
Ubuntu:25.10
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.0.12.ds7-12

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.12.ds7-12"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.12.ds7-12"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.12.ds7-12"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.12.ds7-12"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.12.ds7-12"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
firebird4.0

Package

Name
firebird4.0
Purl
pkg:deb/ubuntu/firebird4.0?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.0.5.3140.ds6-16
4.0.5.3140.ds6-17
4.0.6.3221.ds6-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird-utils",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "firebird4.0-common",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "firebird4.0-examples",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "firebird4.0-server",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "firebird4.0-server-core",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "firebird4.0-utils",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "4.0.6.3221.ds6-2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "4.0.6.3221.ds6-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
Ubuntu:26.04:LTS
firebird3.0

Package

Name
firebird3.0
Purl
pkg:deb/ubuntu/firebird3.0?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.0.12.ds7-12
3.0.13.ds7-2
3.0.13.ds7-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird3.0-common",
            "binary_version": "3.0.13.ds7-2build1"
        },
        {
            "binary_name": "firebird3.0-examples",
            "binary_version": "3.0.13.ds7-2build1"
        },
        {
            "binary_name": "firebird3.0-server",
            "binary_version": "3.0.13.ds7-2build1"
        },
        {
            "binary_name": "firebird3.0-server-core",
            "binary_version": "3.0.13.ds7-2build1"
        },
        {
            "binary_name": "firebird3.0-utils",
            "binary_version": "3.0.13.ds7-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"
firebird4.0

Package

Name
firebird4.0
Purl
pkg:deb/ubuntu/firebird4.0?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.0.6.3221.ds6-2
4.0.6.3221.ds6-2build1
4.0.6.3221.ds6-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "firebird-utils",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "firebird4.0-common",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "firebird4.0-examples",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "firebird4.0-server",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "firebird4.0-server-core",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "firebird4.0-utils",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "libfbclient2",
            "binary_version": "4.0.6.3221.ds6-2build2"
        },
        {
            "binary_name": "libib-util",
            "binary_version": "4.0.6.3221.ds6-2build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40342.json"