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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] libpng (SSA:2026-042-02)
Date: Wed, 11 Feb 2026 17:46:14 -0800 (PST)
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Hash: SHA1

[slackware-security]  libpng (SSA:2026-042-02)

New libpng packages are available for Slackware 15.0 and -current to
fix a security issue.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libpng-1.6.55-i586-1_slack15.0.txz:  Upgraded.
  Fixed a high severity security issue:
  Heap buffer overflow in `png_set_quantize`.
  Reported and fixed by Joshua Inscoe.
  For more information, see:
    https://www.cve.org/CVERecord?id=CVE-2026-25646
  (* 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 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/libpng-1.6.55-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libpng-1.6.55-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libpng-1.6.55-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libpng-1.6.55-x86_64-1.txz


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

Slackware 15.0 package:
b8c6388882ce11d9980511d631a7081f  libpng-1.6.55-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
980b9faf4fffacb2967c95501484d804  libpng-1.6.55-x86_64-1_slack15.0.txz

Slackware -current package:
02382db893ab6faee7a1e58e40201bff  l/libpng-1.6.55-i686-1.txz

Slackware x86_64 -current package:
5cbe89190236dbdce06ab31194737284  l/libpng-1.6.55-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg libpng-1.6.55-i586-1_slack15.0.txz


+-----+

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

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