ALAS2023-2026-1390

References: CVE-2026-22695  CVE-2026-22801 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018. This vulnerability is fixed in 1.6.54. (CVE-2026-22695)

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54. (CVE-2026-22801)

Issue Correction:
Run dnf update libpng --releasever 2023.10.20260202 or dnf update --advisory ALAS2023-2026-1390 --releasever 2023.10.20260202 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:

aarch64:
    libpng-debugsource-1.6.37-10.amzn2023.0.9.aarch64
    libpng-debuginfo-1.6.37-10.amzn2023.0.9.aarch64
    libpng-tools-debuginfo-1.6.37-10.amzn2023.0.9.aarch64
    libpng-tools-1.6.37-10.amzn2023.0.9.aarch64
    libpng-devel-debuginfo-1.6.37-10.amzn2023.0.9.aarch64
    libpng-static-1.6.37-10.amzn2023.0.9.aarch64
    libpng-1.6.37-10.amzn2023.0.9.aarch64
    libpng-devel-1.6.37-10.amzn2023.0.9.aarch64

src:
    libpng-1.6.37-10.amzn2023.0.9.src

x86_64:
    libpng-debugsource-1.6.37-10.amzn2023.0.9.x86_64
    libpng-devel-debuginfo-1.6.37-10.amzn2023.0.9.x86_64
    libpng-static-1.6.37-10.amzn2023.0.9.x86_64
    libpng-tools-debuginfo-1.6.37-10.amzn2023.0.9.x86_64
    libpng-1.6.37-10.amzn2023.0.9.x86_64
    libpng-tools-1.6.37-10.amzn2023.0.9.x86_64
    libpng-debuginfo-1.6.37-10.amzn2023.0.9.x86_64
    libpng-devel-1.6.37-10.amzn2023.0.9.x86_64