Out-of-bounds Read Affecting libpng-tools-debuginfo package, versions <2:1.6.37-10.amzn2023.0.7


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Out-of-bounds Read vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2023-LIBPNGTOOLSDEBUGINFO-14432064
  • published17 Dec 2025
  • disclosed25 Nov 2025

Introduced: 25 Nov 2025

CVE-2025-64720  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libpng-tools-debuginfo to version 2:1.6.37-10.amzn2023.0.7 or higher.
This issue was patched in ALAS2023-2025-1306.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpng-tools-debuginfo package and not the libpng-tools-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

CVSS Base Scores

version 3.1