New libpng packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, 10.2, 11.0, 12.0, 12.1, 12.2, 13.0, 13.1, 13.37, and -current to fix security issues.



Here are the details from the Slackware 13.37 ChangeLog:
+--------------------------+
patches/packages/libpng-1.4.12-i486-1_slack13.37.txz: Upgraded.
Fixed incorrect type (int copy should be png_size_t copy) in png_inflate()
(fixes CVE-2011-3045).
Revised png_set_text_2() to avoid potential memory corruption (fixes
CVE-2011-3048).
Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
For more information, see:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3045
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3048
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3386
(* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 8.1:
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/libpng-1.2.50-i386-1_slack8.1.tgz

Updated package for Slackware 9.0:
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/libpng-1.2.50-i386-1_slack9.0.tgz

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/libpng-1.2.50-i486-1_slack9.1.tgz

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/libpng-1.2.50-i486-1_slack10.0.tgz

Updated package for Slackware 10.1:
ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patches/packages/libpng-1.2.50-i486-1_slack10.1.tgz

Updated package for Slackware 10.2:
ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/packages/libpng-1.2.50-i486-1_slack10.2.tgz

Updated package for Slackware 11.0:
ftp://ftp.slackware.com/pub/slackware/slackware-11.0/patches/packages/libpng-1.2.50-i486-1_slack11.0.tgz

Updated package for Slackware 12.0:
ftp://ftp.slackware.com/pub/slackware/slackware-12.0/patches/packages/libpng-1.2.50-i486-1_slack12.0.tgz

Updated package for Slackware 12.1:
ftp://ftp.slackware.com/pub/slackware/slackware-12.1/patches/packages/libpng-1.2.50-i486-1_slack12.1.tgz

Updated package for Slackware 12.2:
ftp://ftp.slackware.com/pub/slackware/slackware-12.2/patches/packages/libpng-1.2.50-i486-1_slack12.2.tgz

Updated package for Slackware 13.0:
ftp://ftp.slackware.com/pub/slackware/slackware-13.0/patches/packages/libpng-1.2.50-i486-1_slack13.0.txz

Updated package for Slackware x86_64 13.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-13.0/patches/packages/libpng-1.2.50-x86_64-1_slack13.0.txz

Updated package for Slackware 13.1:
ftp://ftp.slackware.com/pub/slackware/slackware-13.1/patches/packages/libpng-1.4.12-i486-1_slack13.1.txz

Updated package for Slackware x86_64 13.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-13.1/patches/packages/libpng-1.4.12-x86_64-1_slack13.1.txz

Updated package for Slackware 13.37:
ftp://ftp.slackware.com/pub/slackware/slackware-13.37/patches/packages/libpng-1.4.12-i486-1_slack13.37.txz

Updated package for Slackware x86_64 13.37:
ftp://ftp.slackware.com/pub/slackware/slackware64-13.37/patches/packages/libpng-1.4.12-x86_64-1_slack13.37.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libpng-1.4.12-i486-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libpng-1.4.12-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 8.1 package:
284b6e6cbd863a3dcfedeb3f7ada3d13 libpng-1.2.50-i386-1_slack8.1.tgz

Slackware 9.0 package:
27933d103db0ec5d2e32469e5073d408 libpng-1.2.50-i386-1_slack9.0.tgz

Slackware 9.1 package:
d7b029366f0f70c218b49101df56cafb libpng-1.2.50-i486-1_slack9.1.tgz

Slackware 10.0 package:
3de3405777a72d3a7d72991c4489853e libpng-1.2.50-i486-1_slack10.0.tgz

Slackware 10.1 package:
e6d10a03b279b2138cab9383e638b621 libpng-1.2.50-i486-1_slack10.1.tgz

Slackware 10.2 package:
524e3febb22566c2b3131ca1eee7a385 libpng-1.2.50-i486-1_slack10.2.tgz

Slackware 11.0 package:
189f441d29495f927143a7c47ec77afb libpng-1.2.50-i486-1_slack11.0.tgz

Slackware 12.0 package:
1e21c28ed8dea4db2d4f8cfc00b858d9 libpng-1.2.50-i486-1_slack12.0.tgz

Slackware 12.1 package:
608b1c9f6426159a60722cd23ece3980 libpng-1.2.50-i486-1_slack12.1.tgz

Slackware 12.2 package:
b1e9950108aa9d2800d639002e6b77a6 libpng-1.2.50-i486-1_slack12.2.tgz

Slackware 13.0 package:
ae6b82cf5487bdc46422650ba374ff41 libpng-1.2.50-i486-1_slack13.0.txz

Slackware x86_64 13.0 package:
409da0ddfd159dd970cccf1c9dee251b libpng-1.2.50-x86_64-1_slack13.0.txz

Slackware 13.1 package:
3462a6eb530d084afcd20837b23d0ac7 libpng-1.4.12-i486-1_slack13.1.txz

Slackware x86_64 13.1 package:
c3058ef9d075ef9083ee7d7a977e6582 libpng-1.4.12-x86_64-1_slack13.1.txz

Slackware 13.37 package:
e9191494e871534e11ec5020f8e72593 libpng-1.4.12-i486-1_slack13.37.txz

Slackware x86_64 13.37 package:
0fea01d53de95669592e9a037c3dc4b9 libpng-1.4.12-x86_64-1_slack13.37.txz

Slackware -current package:
29b9148f5beb384e944e34184d24ce59 l/libpng-1.4.12-i486-1.txz

Slackware x86_64 -current package:
1b546573b17ac7df03773856cc081692 l/libpng-1.4.12-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg libpng-1.4.12-i486-1_slack13.37.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key