USN-3500-1

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Source
https://ubuntu.com/security/notices/USN-3500-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3500-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3500-1
Upstream
Related
Published
2017-11-29T18:01:32.294814Z
Modified
2025-10-13T04:34:33Z
Summary
libxfont, libxfont1, libxfont2 vulnerability
Details

It was discovered that libXfont incorrectly followed symlinks when opening font files. A local unprivileged user could use this issue to cause the X server to access arbitrary files, including special device files.

References

Affected packages

Ubuntu:14.04:LTS / libxfont

Package

Name
libxfont
Purl
pkg:deb/ubuntu/libxfont@1:1.4.7-1ubuntu0.4?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.4.7-1ubuntu0.4

Affected versions

1:1.*

1:1.4.6-1
1:1.4.6-1ubuntu1
1:1.4.7-1
1:1.4.7-1ubuntu0.1
1:1.4.7-1ubuntu0.2
1:1.4.7-1ubuntu0.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxfont-dev",
            "binary_version": "1:1.4.7-1ubuntu0.4"
        },
        {
            "binary_name": "libxfont1",
            "binary_version": "1:1.4.7-1ubuntu0.4"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:14.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2017-16611"
        }
    ]
}

Ubuntu:16.04:LTS / libxfont

Package

Name
libxfont
Purl
pkg:deb/ubuntu/libxfont@1:1.5.1-1ubuntu0.16.04.4?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.5.1-1ubuntu0.16.04.4

Affected versions

1:1.*

1:1.5.1-1
1:1.5.1-1ubuntu0.16.04.1
1:1.5.1-1ubuntu0.16.04.2
1:1.5.1-1ubuntu0.16.04.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxfont1",
            "binary_version": "1:1.5.1-1ubuntu0.16.04.4"
        },
        {
            "binary_name": "libxfont1-dev",
            "binary_version": "1:1.5.1-1ubuntu0.16.04.4"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2017-16611"
        }
    ]
}

Ubuntu:16.04:LTS / libxfont2

Package

Name
libxfont2
Purl
pkg:deb/ubuntu/libxfont2@1:2.0.1-3~ubuntu16.04.3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-3~ubuntu16.04.3

Affected versions

1:2.*

1:2.0.1-3~ubuntu16.04.1
1:2.0.1-3~ubuntu16.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libxfont-dev",
            "binary_version": "1:2.0.1-3~ubuntu16.04.3"
        },
        {
            "binary_name": "libxfont2",
            "binary_version": "1:2.0.1-3~ubuntu16.04.3"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2017-16611"
        }
    ]
}