USN-6611-1

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Source
https://ubuntu.com/security/notices/USN-6611-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6611-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-6611-1
Upstream
Related
Published
2024-01-29T10:52:45.989335Z
Modified
2025-10-13T04:36:45Z
Summary
exim4 vulnerability
Details

It was discovered that Exim incorrectly handled certain requests. A remote attacker could possibly use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism.

References

Affected packages

Ubuntu:Pro:16.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.86.2-2ubuntu2.6+esm6?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.86.2-2ubuntu2.6+esm6

Affected versions

4.*

4.86-3ubuntu1
4.86-7ubuntu1
4.86-7ubuntu2
4.86-7ubuntu3
4.86.2-2ubuntu1
4.86.2-2ubuntu2
4.86.2-2ubuntu2.1
4.86.2-2ubuntu2.2
4.86.2-2ubuntu2.3
4.86.2-2ubuntu2.4
4.86.2-2ubuntu2.5
4.86.2-2ubuntu2.6
4.86.2-2ubuntu2.6+esm1
4.86.2-2ubuntu2.6+esm2
4.86.2-2ubuntu2.6+esm4
4.86.2-2ubuntu2.6+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4-base"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4-config"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4-daemon-heavy"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4-daemon-light"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "exim4-dev"
        },
        {
            "binary_version": "4.86.2-2ubuntu2.6+esm6",
            "binary_name": "eximon4"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6611-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-51766",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:18.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.90.1-1ubuntu1.10+esm3?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.90.1-1ubuntu1.10+esm3

Affected versions

4.*

4.89-5ubuntu1
4.89-9ubuntu1
4.89-9ubuntu2
4.89-9ubuntu3
4.89-9ubuntu4
4.90.1-1ubuntu1
4.90.1-1ubuntu1.1
4.90.1-1ubuntu1.2
4.90.1-1ubuntu1.3
4.90.1-1ubuntu1.4
4.90.1-1ubuntu1.5
4.90.1-1ubuntu1.8
4.90.1-1ubuntu1.9
4.90.1-1ubuntu1.10
4.90.1-1ubuntu1.10+esm1
4.90.1-1ubuntu1.10+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4-base"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4-config"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4-daemon-heavy"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4-daemon-light"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "exim4-dev"
        },
        {
            "binary_version": "4.90.1-1ubuntu1.10+esm3",
            "binary_name": "eximon4"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6611-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-51766",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}

Ubuntu:20.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.93-13ubuntu1.10?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.93-13ubuntu1.10

Affected versions

4.*

4.92.1-1ubuntu3
4.92.1-1ubuntu4
4.93~RC2-1ubuntu1
4.93-9ubuntu1
4.93-11ubuntu1
4.93-12ubuntu1
4.93-13ubuntu1
4.93-13ubuntu1.1
4.93-13ubuntu1.5
4.93-13ubuntu1.6
4.93-13ubuntu1.7
4.93-13ubuntu1.8
4.93-13ubuntu1.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4-base"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4-config"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4-daemon-heavy"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4-daemon-light"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "exim4-dev"
        },
        {
            "binary_version": "4.93-13ubuntu1.10",
            "binary_name": "eximon4"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6611-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-51766",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

Ubuntu:22.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.95-4ubuntu2.5?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.95-4ubuntu2.5

Affected versions

4.*

4.94.2-7ubuntu2
4.95-2ubuntu2
4.95-4ubuntu1
4.95-4ubuntu2
4.95-4ubuntu2.1
4.95-4ubuntu2.2
4.95-4ubuntu2.3
4.95-4ubuntu2.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4-base"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4-config"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4-daemon-heavy"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4-daemon-light"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "exim4-dev"
        },
        {
            "binary_version": "4.95-4ubuntu2.5",
            "binary_name": "eximon4"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6611-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-51766",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}