USN-6939-1

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Source
https://ubuntu.com/security/notices/USN-6939-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6939-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-6939-1
Upstream
Related
Published
2024-07-31T18:40:26.595992Z
Modified
2025-10-13T04:37:57Z
Summary
exim4 vulnerability
Details

Phillip Szelat discovered that Exim misparses multiline MIME header filenames. A remote attacker could use this issue to bypass a MIME filename extension-blocking protection mechanism and possibly deliver executable attachments to the mailboxes of end users.

References

Affected packages

Ubuntu:Pro:16.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.86.2-2ubuntu2.6+esm8?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+esm8

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
4.86.2-2ubuntu2.6+esm6
4.86.2-2ubuntu2.6+esm7

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "exim4",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "exim4-base",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "exim4-config",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "exim4-dev",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        },
        {
            "binary_name": "eximon4",
            "binary_version": "4.86.2-2ubuntu2.6+esm8"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39929"
        }
    ],
    "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+esm5?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+esm5

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
4.90.1-1ubuntu1.10+esm3
4.90.1-1ubuntu1.10+esm4

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "exim4",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "exim4-base",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "exim4-config",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "exim4-dev",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        },
        {
            "binary_name": "eximon4",
            "binary_version": "4.90.1-1ubuntu1.10+esm5"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39929"
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}

Ubuntu:20.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.93-13ubuntu1.12?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.93-13ubuntu1.12

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
4.93-13ubuntu1.10
4.93-13ubuntu1.11

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "exim4",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "exim4-base",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "exim4-config",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "exim4-dev",
            "binary_version": "4.93-13ubuntu1.12"
        },
        {
            "binary_name": "eximon4",
            "binary_version": "4.93-13ubuntu1.12"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39929"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

Ubuntu:22.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.95-4ubuntu2.6?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.95-4ubuntu2.6

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
4.95-4ubuntu2.5

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "exim4",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "exim4-base",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "exim4-config",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "exim4-dev",
            "binary_version": "4.95-4ubuntu2.6"
        },
        {
            "binary_name": "eximon4",
            "binary_version": "4.95-4ubuntu2.6"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39929"
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}

Ubuntu:24.04:LTS / exim4

Package

Name
exim4
Purl
pkg:deb/ubuntu/exim4@4.97-4ubuntu4.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.97-4ubuntu4.1

Affected versions

4.*

4.96-17ubuntu2
4.96-17ubuntu2.1
4.97-3ubuntu1
4.97-4ubuntu1
4.97-4ubuntu3
4.97-4ubuntu4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "exim4",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "exim4-base",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "exim4-config",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "exim4-daemon-heavy",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "exim4-daemon-light",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "exim4-dev",
            "binary_version": "4.97-4ubuntu4.1"
        },
        {
            "binary_name": "eximon4",
            "binary_version": "4.97-4ubuntu4.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39929"
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}