CVE-2020-25674
Description
WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.
EPSS (Exploit Prediction Scoring System)
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score Trend (Last 90 Days)
Heap-based Buffer Overflow
DraftCommon Consequences
Applicable Platforms
Imagemagick by Imagemagick
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Debian Linux by Debian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Imagemagick by Imagemagick
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*