libpng (SSA:2019-107-01)
From: Slackware Security Team <>
Subject: [slackware-security] libpng (SSA:2019-107-01)
Date: Wed, 17 Apr 2019 14:20:24 -0700 (PDT)

Hash: SHA1

[slackware-security] libpng (SSA:2019-107-01)

New libpng packages are available for Slackware 14.2 and -current to
fix security issues.

Here are the details from the Slackware 14.2 ChangeLog:
patches/packages/libpng-1.6.37-i586-1_slack14.2.txz: Upgraded.
This update fixes security issues:
Fixed a use-after-free vulnerability (CVE-2019-7317) in png_image_free.
Fixed a memory leak in the ARM NEON implementation of png_do_expand_palette.
Fixed a memory leak in pngtest.c.
Fixed two vulnerabilities (CVE-2018-14048, CVE-2018-14550) in
contrib/pngminus; refactor.
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 14.2:

Updated package for Slackware x86_64 14.2:

Updated package for Slackware -current:

Updated package for Slackware x86_64 -current:

MD5 signatures:

Slackware 14.2 package:
829f6c020ad10fe9b09e94bceb7fae26 libpng-1.6.37-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
e141813a42551a3c31df15b8495dc1a3 libpng-1.6.37-x86_64-1_slack14.2.txz

Slackware -current package:
0f711d15bd85893a02f398b95b7d3f06 l/libpng-1.6.37-i586-1.txz

Slackware x86_64 -current package:
d8bdd5c1a73fa487c5f1a1a4b3ec2f63 l/libpng-1.6.37-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
# upgradepkg libpng-1.6.37-i586-1_slack14.2.txz


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