UBUNTU-CVE-2017-13720

See a problem?
Please try reporting it to the source first.

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.osv.dev/v1/vulns/UBUNTU-CVE-2017-13720

Related

Published

2017-10-05T00:00:00Z

Modified

2017-10-05T00:00:00Z

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?arch=src?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

{
    "availability": "No subscription required",
    "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"
        }
    ]
}

Ubuntu:16.04:LTS / libxfont

Package

Name: libxfont
Purl: pkg:deb/ubuntu/libxfont?arch=src?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

{
    "availability": "No subscription required",
    "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"
        }
    ]
}

Ubuntu:16.04:LTS / libxfont2

Package

Name: libxfont2
Purl: pkg:deb/ubuntu/libxfont2?arch=src?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

{
    "availability": "No subscription required",
    "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"
        }
    ]
}