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Ubuntu 14.04 LTS / 16.04 LTS : libXfont vulnerabilities (USN-3442-1)

high Nessus Plugin ID 103774

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3442-1 advisory.

 It was discovered that libXfont incorrectly handled certain patterns in PatternMatch. A local attacker could use this issue to cause libXfont to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-13720)

 It was discovered that libXfont incorrectly handled certain malformed PCF files. A local attacker could use this issue to cause libXfont to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-13722)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3442-1

Plugin Details

Severity: High

ID: 103774

File Name: ubuntu_USN-3442-1.nasl

Version: 3.11

Type: local

Agent: unix

Published: 10/11/2017

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2017-13722

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libxfont1-dev, p-cpe:/a:canonical:ubuntu_linux:libxfont2-udeb, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libxfont1-udeb, p-cpe:/a:canonical:ubuntu_linux:libxfont1, p-cpe:/a:canonical:ubuntu_linux:libxfont2, p-cpe:/a:canonical:ubuntu_linux:libxfont-dev

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2017

Vulnerability Publication Date: 10/11/2017

Reference Information

CVE: CVE-2017-13720, CVE-2017-13722

USN: 3442-1