CVE-2026-33636

A flaw was found in libpng. A remote attacker could exploit an out-of-bounds read and write vulnerability in the ARM/AArch64 Neon-optimized palette expansion path. This occurs when processing a final partial chunk of 8-bit paletted rows without verifying sufficient input pixels, leading to...

[slackware-security] libpng

New libpng packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/libpng-1.6.56-i586-1slack15.0.txz: Upgraded. This update fixes security issues: Use-after-free via pointer aliasing in pngsettRNS and...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read through the NEON palette expansion functions in arm/paletteneonintrinsics.c. An attacker can corrupt memory or crash the application by supplying a PNG row whose width is not a multiple of the NEON chunk size. Notes -...

DEBIAN-CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

AZL-81348 CVE-2026-33636 affecting package optipng 0.7.8-5

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

ALPINE-CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

AZL-81312 CVE-2026-33636 affecting package fltk 1.3.8-1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

AZL-80993 CVE-2026-33636 affecting package libpng for versions less than 1.6.56-1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

UBUNTU-CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636 LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

EUVD-2026-16269

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636 LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636 LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

CVE-2026-33636

CVE-2026-33636 targets the libpng library. In libpng versions 1.6.36–1.6.55, an ARM/AArch64 Neon-optimized palette expansion path permits an out-of-bounds read and an out-of-bounds write when expanding 8-bit paletted rows to RGB/RGBA. The Neon loop processes a final partial chunk without verifyin...

CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...

SUSE CVE-2026-33636

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit...