libXfont (SSA:2017-333-02)
From: Slackware Security Team <>
Subject: [slackware-security] libXfont (SSA:2017-333-02)
Date: Wed, 29 Nov 2017 00:19:27 -0800 (PST)

Hash: SHA1

[slackware-security] libXfont (SSA:2017-333-02)

New libXfont packages are available for Slackware 13.0, 13.1, 13.37, 14.0,
14.1, and 14.2 to fix a security issue.

Here are the details from the Slackware 14.2 ChangeLog:
patches/packages/libXfont-1.5.1-i486-2_slack14.2.txz: Rebuilt.
Open files with O_NOFOLLOW. (CVE-2017-16611)
A non-privileged X client can instruct X server running under root
to open any file by creating own directory with "fonts.dir",
"fonts.alias" or any font file being a symbolic link to any other
file in the system. X server will then open it. This can be issue
with special files such as /dev/watchdog (which could then reboot
the system).
For more information, see:
(* Security fix *)

Where to find the new packages:

Thanks to the friendly folks at the OSU Open Source Lab
( for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on for
additional mirror sites near you.

Updated package for Slackware 13.0:

Updated package for Slackware x86_64 13.0:

Updated package for Slackware 13.1:

Updated package for Slackware x86_64 13.1:

Updated package for Slackware 13.37:

Updated package for Slackware x86_64 13.37:

Updated package for Slackware 14.0:

Updated package for Slackware x86_64 14.0:

Updated package for Slackware 14.1:

Updated package for Slackware x86_64 14.1:

Updated package for Slackware 14.2:

Updated package for Slackware x86_64 14.2:

MD5 signatures:

Slackware 13.0 package:
d4e8a99e4626b5af9d01dda8115dfde6 libXfont-1.4.7-i486-2_slack13.0.txz

Slackware x86_64 13.0 package:
6da27927dc234d9af2c887ef3aaf0652 libXfont-1.4.7-x86_64-2_slack13.0.txz

Slackware 13.1 package:
cdbad94a8e312376337b59b83d366cfe libXfont-1.4.7-i486-2_slack13.1.txz

Slackware x86_64 13.1 package:
722031314a36c229890fbe60cf6d8eba libXfont-1.4.7-x86_64-2_slack13.1.txz

Slackware 13.37 package:
eb12f2cb9f865f4dab77c775b39c06db libXfont-1.4.7-i486-2_slack13.37.txz

Slackware x86_64 13.37 package:
38c3116005da2c8d72895220ddba9211 libXfont-1.4.7-x86_64-2_slack13.37.txz

Slackware 14.0 package:
4c362f1814961204b8b75abbd53a50fc libXfont-1.4.7-i486-2_slack14.0.txz

Slackware x86_64 14.0 package:
d9bd722c9eda136044add9721592b477 libXfont-1.4.7-x86_64-2_slack14.0.txz

Slackware 14.1 package:
ac850117bc5d16bbcfec2819171e1926 libXfont-1.4.7-i486-2_slack14.1.txz

Slackware x86_64 14.1 package:
46b282522223c7634efb5f328368f1d1 libXfont-1.4.7-x86_64-2_slack14.1.txz

Slackware 14.2 package:
3795216c7eacba7802c6c1b833f9409d libXfont-1.5.1-i486-2_slack14.2.txz

Slackware x86_64 14.2 package:
249df4d8535caef39a422854d7d32cf1 libXfont-1.5.1-x86_64-2_slack14.2.txz

Installation instructions:

Upgrade the package as root:
# upgradepkg libXfont-1.5.1-i486-2_slack14.2.txz


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