vulnerability
Red Hat: CVE-2025-66293: libpng: LIBPNG out-of-bounds read in png_image_read_composite (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:M/Au:N/C:P/I:N/A:C) | Dec 3, 2025 | Jan 7, 2026 | Jan 9, 2026 |
Severity
8
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:C)
Published
Dec 3, 2025
Added
Jan 7, 2026
Modified
Jan 9, 2026
Description
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.
Solutions
redhat-upgrade-libpngredhat-upgrade-libpng-debuginforedhat-upgrade-libpng-debugsourceredhat-upgrade-libpng-develredhat-upgrade-libpng-devel-debuginforedhat-upgrade-libpng-tools-debuginforedhat-upgrade-mingw32-libpngredhat-upgrade-mingw32-libpng-debuginforedhat-upgrade-mingw32-libpng-staticredhat-upgrade-mingw64-libpngredhat-upgrade-mingw64-libpng-debuginforedhat-upgrade-mingw64-libpng-static
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