Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-66293: LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.
Fixed packages 8
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | libpng | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-debuginfo | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-debugsource | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-devel | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-devel-debuginfo | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-static | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-tools | 2:1.6.37-10.amzn2023.0.8 |
| Amazon Linux · 2023 | libpng-tools-debuginfo | 2:1.6.37-10.amzn2023.0.8 |
Vulnerabilities 1
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High 7.1
LIBPNG has an out-of-bounds read in png_image_read_composite
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond …
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2025-66293.html