ESB-2026.3676

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3676 Security update for libpng16 15 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: libpng16 Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-33416 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261323-1 Comment: CVSS (Max): 8.1 CVE-2026-33416 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H EPSS (Max): 0.0% (12th) CVE-2026-33416 2026-04-14 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for libpng16 Announcement ID: SUSE-SU-2026:1323-1 Release Date: 2026-04-14T13:12:33Z Rating: important References: o bsc#1260754 Cross-References: o CVE-2026-33416 o CVE-2026-33416 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N /UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N o CVE-2026-33416 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N CVSS scores: /S:U/C:H/I:H/A:H o CVE-2026-33416 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/ S:U/C:H/I:H/A:H o SUSE Linux Enterprise High Performance Computing 15 SP4 o SUSE Linux Enterprise High Performance Computing 15 SP5 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 Affected o SUSE Linux Enterprise Micro 5.2 Products: o SUSE Linux Enterprise Micro 5.3 o SUSE Linux Enterprise Micro 5.4 o SUSE Linux Enterprise Micro 5.5 o SUSE Linux Enterprise Micro for Rancher 5.2 o SUSE Linux Enterprise Micro for Rancher 5.3 o SUSE Linux Enterprise Micro for Rancher 5.4 o SUSE Linux Enterprise Server 15 SP4 o SUSE Linux Enterprise Server 15 SP4 LTSS o SUSE Linux Enterprise Server 15 SP5 o SUSE Linux Enterprise Server 15 SP5 LTSS o SUSE Linux Enterprise Server for SAP Applications 15 SP4 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves one vulnerability can now be installed. Description: This update for libpng16 fixes the following issues: o CVE-2026-33416: use-after-free via pointer aliasing in png_set_tRNS and png_set_PLTE can lead to arbitrary code execution (bsc#1260754). 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: o SUSE Linux Enterprise Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1323=1 o SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1323=1 o SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1323=1 o SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1323=1 o SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1323=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1323=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1323=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1323=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1323=1 o SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1323=1 o SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1323=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1323=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1323=1 o SUSE Linux Enterprise Micro 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1323=1 o SUSE Linux Enterprise Micro for Rancher 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1323=1 Package List: o SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server 15 SP4 LTSS (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) libpng16-compat-devel-1.6.34-150000.3.22.1 libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 libpng16-devel-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (x86_64) libpng16-16-32bit-1.6.34-150000.3.22.1 libpng16-16-32bit-debuginfo-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 o SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64) libpng16-16-debuginfo-1.6.34-150000.3.22.1 libpng16-16-1.6.34-150000.3.22.1 libpng16-debugsource-1.6.34-150000.3.22.1 References: o https://www.suse.com/security/cve/CVE-2026-33416.html o https://bugzilla.suse.com/show_bug.cgi?id=1260754 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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