UBUNTU-CVE-2026-46675
[Use-after-free of zlib input in `png_read_end` after incomplete zTXt, iTXt or iCCP decompression]
- Mettez à jour vers 1.6.57-1ubuntu0.1
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PatchFirst · Vulnérabilités récentes
Vulnérabilités de libpng1.6
Vulnérabilité publiée pour libpng1.6 au cours des 30 derniers jours : 1. Dans le catalogue KEV : 0.
Vulnérabilités : 3
LIBPNG has a heap buffer overflow in png_set_quantize
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.
- Mettez à jour vers 1.6.55-1
Publication Mise à jourLIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.
- Mettez à jour vers 1.6.54-1
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