Detections
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GLSA-201801-10 : LibXfont, LibXfont2: Arbitrary file access

medium Nessus Plugin ID 105666

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201801-10 (LibXfont, LibXfont2: Arbitrary file access)

 It was discovered that libXfont incorrectly followed symlinks when opening font files.
 Impact :

 A local unprivileged user could use this flaw to cause the X server to access arbitrary files, including special device files.
 Workaround :

 There is no known workaround at this time.

Solution

All LibXfont users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=x11-libs/libXfont-1.5.4' All LibXfont2 users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=x11-libs/libXfont2-2.0.3'

See Also

https://security.gentoo.org/glsa/201801-10

Plugin Details

Severity: Medium

ID: 105666

File Name: gentoo_GLSA-201801-10.nasl

Version: 3.5

Type: local

Published: 1/9/2018

Updated: 11/10/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2017-16611

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:libxfont, p-cpe:/a:gentoo:linux:libxfont2

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/8/2018

Vulnerability Publication Date: 12/1/2017

Reference Information

CVE: CVE-2017-16611

GLSA: 201801-10