libpng (SSA:2015-337-01)
From: Slackware Security Team <>
Subject: [slackware-security] libpng (SSA:2015-337-01)
Date: Thu, 3 Dec 2015 00:20:21 -0800 (PST)

Hash: SHA1

[slackware-security] libpng (SSA:2015-337-01)

New libpng packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1,
and -current to fix security issues.

Here are the details from the Slackware 14.1 ChangeLog:
patches/packages/libpng-1.4.17-i486-1_slack14.1.txz: Upgraded.
Fixed buffer overflows in the png_set_PLTE(), png_get_PLTE(),
png_set_tIME(), and png_convert_to_rfc1123() functions that allow
attackers to cause a denial of service (application crash) or
possibly have unspecified other impact via a small bit-depth value
in an IHDR (aka image header) chunk in a PNG image.
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 -current:

Updated package for Slackware x86_64 -current:

MD5 signatures:

Slackware 13.0 package:
c6eb0eeb425af17d02655f2f9fa69723 libpng-1.2.54-i486-1_slack13.0.txz

Slackware x86_64 13.0 package:
ee85a731b10fe3d5767b97e91d6bfc1f libpng-1.2.54-x86_64-1_slack13.0.txz

Slackware 13.1 package:
3d6d26c2cdd0f8ffc9d4ee4284ebdfc7 libpng-1.4.17-i486-1_slack13.1.txz

Slackware x86_64 13.1 package:
2b9beff2066d8cd2530c4db6878f3644 libpng-1.4.17-x86_64-1_slack13.1.txz

Slackware 13.37 package:
36f5490f07d75665bab2bc5cccd77437 libpng-1.4.17-i486-1_slack13.37.txz

Slackware x86_64 13.37 package:
b0110d8941fd249c9b99932b7de67990 libpng-1.4.17-x86_64-1_slack13.37.txz

Slackware 14.0 package:
0e21fde66006e6e86117ba075e8c160d libpng-1.4.17-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
221b16014a862c02e787519a3090812b libpng-1.4.17-x86_64-1_slack14.0.txz

Slackware 14.1 package:
cdd3f81e3a487b4aceb1920295c9ffbe libpng-1.4.17-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
e0f2e5230458bdb77a19dbc09b6eae0e libpng-1.4.17-x86_64-1_slack14.1.txz

Slackware -current package:
56306097bf7dde2aa757d122d6fb3616 l/libpng-1.6.19-i586-1.txz

Slackware x86_64 -current package:
d11905e7d052578e96ff10f42b175c89 l/libpng-1.6.19-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
# upgradepkg libpng-1.4.17-i486-1_slack14.1.txz


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