imagemagick: heap-buffer overflow read in MNG magnification with alpha

Vulnerability Details When performing image magnification in ReadOneMNGIMage in coders/png.c, there is an issue around the handling of images with separate alpha channels. When loading an image with a color type that implies a separate alpha channel ie. jngcolortype = 12, we will load the alpha...

The vulnerability of the tif_getimage.c component in the LibTIFF library, related to writing beyond the buffer boundaries, allows an attacker to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the tifgetimage.c component in the LibTIFF library is related to a buffer overflow vulnerability. This could potentially lead to a buffer overflow through the creation of an RGBA image, due to the presence of the “Nagative-size-param” condition. Exploiting this vulnerability...

UBUNTU-CVE-2019-11471

libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::setalphachannel in heifcontext.h because heifcontext.cc mishandles references to non-existing alpha images...