Security update for libpng16

Announcement ID:	SUSE-SU-2025:4494-1
Release Date:	2025-12-19T13:14:28Z
Rating:	important
References:	bsc#1254157 bsc#1254158 bsc#1254159 bsc#1254160 bsc#1254480
Cross-References:	CVE-2025-64505 CVE-2025-64506 CVE-2025-64720 CVE-2025-65018 CVE-2025-66293
CVSS scores:	CVE-2025-64505 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-64505 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2025-64505 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVE-2025-64506 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-64506 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2025-64506 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVE-2025-64720 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-64720 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2025-64720 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVE-2025-65018 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-65018 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVE-2025-65018 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H CVE-2025-66293 ( SUSE ): 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-66293 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVE-2025-66293 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected Products:	Basesystem Module 15-SP6 Basesystem Module 15-SP7 openSUSE Leap 15.6 SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Real Time 15 SP7 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves five vulnerabilities can now be installed.

Description:

This update for libpng16 fixes the following issues:

• CVE-2025-65018: Fixed heap buffer overflow in png_combine_row triggered via png_image_finish_read (bsc#1254160)
• CVE-2025-66293: Fixed LIBPNG out-of-bounds read in png_image_read_composite (bsc#1254480)
• CVE-2025-64506: Fixed heap buffer over-read in png_write_image_8bit with 8-bit input and convert_to_8bit enabled (bsc#1254158)
• CVE-2025-64720: Fixed buffer overflow in png_image_read_composite via incorrect palette premultiplication (bsc#1254159)
• CVE-2025-64505: Fixed heap buffer over-read in png_do_quantize via malformed palette index (bsc#1254157)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.6
  zypper in -t patch SUSE-2025-4494=1 openSUSE-SLE-15.6-2025-4494=1
• Basesystem Module 15-SP6
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-4494=1
• Basesystem Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-4494=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • libpng16-tools-debuginfo-1.6.40-150600.3.3.1
  • libpng16-16-1.6.40-150600.3.3.1
  • libpng16-16-debuginfo-1.6.40-150600.3.3.1
  • libpng16-compat-devel-1.6.40-150600.3.3.1
  • libpng16-devel-1.6.40-150600.3.3.1
  • libpng16-tools-1.6.40-150600.3.3.1
  • libpng16-debugsource-1.6.40-150600.3.3.1
• openSUSE Leap 15.6 (x86_64)
  • libpng16-compat-devel-32bit-1.6.40-150600.3.3.1
  • libpng16-devel-32bit-1.6.40-150600.3.3.1
  • libpng16-16-32bit-1.6.40-150600.3.3.1
  • libpng16-16-32bit-debuginfo-1.6.40-150600.3.3.1
• openSUSE Leap 15.6 (aarch64_ilp32)
  • libpng16-16-64bit-debuginfo-1.6.40-150600.3.3.1
  • libpng16-compat-devel-64bit-1.6.40-150600.3.3.1
  • libpng16-16-64bit-1.6.40-150600.3.3.1
  • libpng16-devel-64bit-1.6.40-150600.3.3.1
• Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
  • libpng16-16-1.6.40-150600.3.3.1
  • libpng16-16-debuginfo-1.6.40-150600.3.3.1
  • libpng16-compat-devel-1.6.40-150600.3.3.1
  • libpng16-devel-1.6.40-150600.3.3.1
  • libpng16-debugsource-1.6.40-150600.3.3.1
• Basesystem Module 15-SP6 (x86_64)
  • libpng16-16-32bit-1.6.40-150600.3.3.1
  • libpng16-16-32bit-debuginfo-1.6.40-150600.3.3.1
• Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • libpng16-16-1.6.40-150600.3.3.1
  • libpng16-16-debuginfo-1.6.40-150600.3.3.1
  • libpng16-compat-devel-1.6.40-150600.3.3.1
  • libpng16-devel-1.6.40-150600.3.3.1
  • libpng16-debugsource-1.6.40-150600.3.3.1
• Basesystem Module 15-SP7 (x86_64)
  • libpng16-16-32bit-1.6.40-150600.3.3.1
  • libpng16-16-32bit-debuginfo-1.6.40-150600.3.3.1

References:

• https://www.suse.com/security/cve/CVE-2025-64505.html
• https://www.suse.com/security/cve/CVE-2025-64506.html
• https://www.suse.com/security/cve/CVE-2025-64720.html
• https://www.suse.com/security/cve/CVE-2025-65018.html
• https://www.suse.com/security/cve/CVE-2025-66293.html
• https://bugzilla.suse.com/show_bug.cgi?id=1254157
• https://bugzilla.suse.com/show_bug.cgi?id=1254158
• https://bugzilla.suse.com/show_bug.cgi?id=1254159
• https://bugzilla.suse.com/show_bug.cgi?id=1254160
• https://bugzilla.suse.com/show_bug.cgi?id=1254480