UBUNTU-CVE-2017-13720

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Source
https://ubuntu.com/security/CVE-2017-13720
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-13720.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2017-13720
Related
Published
2017-10-05T00:00:00Z
Modified
2025-01-13T10:21:26Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

References

Affected packages

Ubuntu:14.04:LTS / libxfont

Package

Name
libxfont
Purl
pkg:deb/ubuntu/libxfont@1:1.4.7-1ubuntu0.3?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.4.7-1ubuntu0.3

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

Ecosystem specific 

{
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont-dev"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont-dev-dbgsym"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont1"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont1-dbg"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont1-dbgsym"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont1-udeb"
        },
        {
            "binary_version": "1:1.4.7-1ubuntu0.3",
            "binary_name": "libxfont1-udeb-dbgsym"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / libxfont

Package

Name
libxfont
Purl
pkg:deb/ubuntu/libxfont@1:1.5.1-1ubuntu0.16.04.3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.5.1-1ubuntu0.16.04.3

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

Ecosystem specific 

{
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-dbg"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-dbgsym"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-dev"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-dev-dbgsym"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-udeb"
        },
        {
            "binary_version": "1:1.5.1-1ubuntu0.16.04.3",
            "binary_name": "libxfont1-udeb-dbgsym"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / libxfont2

Package

Name
libxfont2
Purl
pkg:deb/ubuntu/libxfont2@1:2.0.1-3~ubuntu16.04.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.0.1-3~ubuntu16.04.2

Affected versions

1:2.*

1:2.0.1-3~ubuntu16.04.1

Ecosystem specific 

{
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1:2.0.1-3~ubuntu16.04.2",
            "binary_name": "libxfont-dev"
        },
        {
            "binary_version": "1:2.0.1-3~ubuntu16.04.2",
            "binary_name": "libxfont2"
        },
        {
            "binary_version": "1:2.0.1-3~ubuntu16.04.2",
            "binary_name": "libxfont2-dbgsym"
        },
        {
            "binary_version": "1:2.0.1-3~ubuntu16.04.2",
            "binary_name": "libxfont2-udeb"
        },
        {
            "binary_version": "1:2.0.1-3~ubuntu16.04.2",
            "binary_name": "libxfont2-udeb-dbgsym"
        }
    ],
    "availability": "No subscription required"
}