The following two security updates has been released for Slackware Linux:

libpng (SSA:2015-337-01)
mozilla-thunderbird (SSA:2015-337-02)

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:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7981
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8126.
(* 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 13.0:
ftp://ftp.slackware.com/pub/slackware/slackware-13.0/patches/packages/libpng-1.2.54-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-1.2.54-x86_64-1_slack13.0.txz

Updated package for Slackware 13.1:
ftp://ftp.slackware.com/pub/slackware/slackware-13.1/patches/packages/libpng-1.4.17-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-1.4.17-x86_64-1_slack13.1.txz

Updated package for Slackware 13.37:
ftp://ftp.slackware.com/pub/slackware/slackware-13.37/patches/packages/libpng-1.4.17-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-1.4.17-x86_64-1_slack13.37.txz

Updated package for Slackware 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/libpng-1.4.17-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/libpng-1.4.17-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/libpng-1.4.17-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/libpng-1.4.17-x86_64-1_slack14.1.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libpng-1.6.19-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libpng-1.6.19-x86_64-1.txz


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

mozilla-thunderbird (SSA:2015-337-02)

New mozilla-thunderbird packages are available for Slackware 14.1 and -current
to fix security issues.


Here are the details from the Slackware 14.1 ChangeLog:
+--------------------------+
patches/packages/mozilla-thunderbird-38.4.0-i486-1_slack14.1.txz: Upgraded.
This release contains security fixes and improvements.
For more information, see:
http://www.mozilla.org/security/known-vulnerabilities/thunderbird.html
(* 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 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/mozilla-thunderbird-38.4.0-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/mozilla-thunderbird-38.4.0-x86_64-1_slack14.1.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-38.4.0-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-38.4.0-x86_64-1.txz


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

Slackware 14.1 package:
4d13f012e6b5142ce49034e9f69b3979 mozilla-thunderbird-38.4.0-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
5625007215517cf1819be09757e8aec7 mozilla-thunderbird-38.4.0-x86_64-1_slack14.1.txz

Slackware -current package:
01540ce24c4e6b9a548966981f2b4789 xap/mozilla-thunderbird-38.4.0-i586-1.txz

Slackware x86_64 -current package:
e22f3356239da6feb8243cd5e8a03bac xap/mozilla-thunderbird-38.4.0-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-38.4.0-i486-1_slack14.1.txz