Executive Summary

Summary
Title LibXfont, LibXfont2: Arbitrary file access
Informations
Name GLSA-201801-10 First vendor Publication 2018-01-08
Vendor Gentoo Last vendor Modification 2018-01-08
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability has been found in LibXfont and LibXfont2 which may allow for arbitrary file access.

Background

X.Org Xfont library.

Description

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.

Resolution

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"

References

[ 1 ] CVE-2017-16611 : https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16611

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

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

Original Source

Url : http://security.gentoo.org/glsa/glsa-201801-10.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 28
Os 4
Os 2

Nessus® Vulnerability Scanner

Date Description
2018-03-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-05b078c373.nasl - Type : ACT_GATHER_INFO
2018-03-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-4f5a3e792f.nasl - Type : ACT_GATHER_INFO
2018-03-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-5a7cd68500.nasl - Type : ACT_GATHER_INFO
2018-03-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-e27b435a7f.nasl - Type : ACT_GATHER_INFO
2018-01-09 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201801-10.nasl - Type : ACT_GATHER_INFO
2017-12-18 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_08a125f3e35a11e7a29354e1ad3d6335.nasl - Type : ACT_GATHER_INFO
2017-11-30 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-333-02.nasl - Type : ACT_GATHER_INFO
2017-11-30 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3500-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2018-01-09 05:19:46
  • First insertion