Out-of-bounds Read Affecting libpng1.6 package, versions *
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- published23 Nov 2025
- disclosed25 Nov 2025
Introduced: 23 Nov 2025
NewCVE-2025-64505 (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. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.