Heap-based Buffer Overflow Affecting libpng1.6 package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIAN12-LIBPNG16-14100687
  • published23 Nov 2025
  • disclosed25 Nov 2025

Introduced: 23 Nov 2025

NewCVE-2025-65018  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 libpng1.6.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpng1.6 package and not the libpng1.6 package as distributed by Debian. See How to fix? for Debian:12 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, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.