Amazon Linux 2023 Security Advisory: ALAS2023-2026-1463
Advisory Released Date: 2026-03-05
Advisory Updated Date: 2026-03-05
Severity:
Medium
Issue Overview:
libpng: An out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer.
The images that trigger this vulnerability are valid per the PNG specification. (CVE-2026-25646)
Affected Packages:
libpng
Issue Correction:
Run dnf update libpng --releasever 2023.10.20260302 or dnf update --advisory ALAS2023-2026-1463 --releasever 2023.10.20260302 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.amzn2023.0.11.aarch64
libpng-1.6.37-10.amzn2023.0.11.aarch64
libpng-static-1.6.37-10.amzn2023.0.11.aarch64
libpng-tools-1.6.37-10.amzn2023.0.11.aarch64
libpng-devel-debuginfo-1.6.37-10.amzn2023.0.11.aarch64
libpng-debuginfo-1.6.37-10.amzn2023.0.11.aarch64
libpng-tools-debuginfo-1.6.37-10.amzn2023.0.11.aarch64
libpng-devel-1.6.37-10.amzn2023.0.11.aarch64
src:
libpng-1.6.37-10.amzn2023.0.11.src
x86_64:
libpng-tools-debuginfo-1.6.37-10.amzn2023.0.11.x86_64
libpng-tools-1.6.37-10.amzn2023.0.11.x86_64
libpng-static-1.6.37-10.amzn2023.0.11.x86_64
libpng-1.6.37-10.amzn2023.0.11.x86_64
libpng-debuginfo-1.6.37-10.amzn2023.0.11.x86_64
libpng-devel-1.6.37-10.amzn2023.0.11.x86_64
libpng-devel-debuginfo-1.6.37-10.amzn2023.0.11.x86_64
libpng-debugsource-1.6.37-10.amzn2023.0.11.x86_64