Msrc Azl3 Libpng 1.6.55-1 On Azure Linux 3.0 vulnerabilities

CVE-2026-33636 [HIGH] CWE-125 LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64 LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on AArch64 Mariner: Mariner GitHub_M: GitHub_M Customer Action Required: Yes

CVE-2026-33416 [HIGH] CWE-416 LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE` LIBPNG has use-after-free via pointer aliasing in `png_set_tRNS` and `png_set_PLTE` Mariner: Mariner GitHub_M: GitHub_M Customer Action Required: Yes

CVE-2026-3713 [MEDIUM] CWE-122 pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow Mariner: Mariner VulDB: VulDB Customer Action Required: Yes