Out-of-bounds Read Affecting mingw-libpng package, versions <0:1.6.34-1.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.06% (20th percentile)

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  • Snyk IDSNYK-ROCKY8-MINGWLIBPNG-14895904
  • published8 Jan 2026
  • 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 Rocky-Linux:8 mingw-libpng to version 0:1.6.34-1.el8_10 or higher.
This issue was patched in RLSA-2026:0125.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mingw-libpng package and not the mingw-libpng package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 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