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CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1

08 Dec 2020 — The PALM image coder at coders/palm.c makes an improper call to AcquireQuantumMemory() in routine WritePALMImage() because it needs to be offset by 256. This can cause a out-of-bounds read later on in the routine. The patch adds 256 to bytes_per_row in the call to AcquireQuantumMemory(). This could cause impact to reliability. This flaw affects ImageMagick versions prior to 7.0.8-68. • https://bugzilla.redhat.com/show_bug.cgi?id=1891606 • CWE-122: Heap-based Buffer Overflow CWE-125: Out-of-bounds Read •

CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 1

08 Dec 2020 — There are 4 places in HistogramCompare() in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and `count` value for a color. The patch uses casts to `ssize_t` type for these calculations, instead of `int`. This flaw could impact application reliability in the event that ImageMagick processes a crafted input file. This flaw affects ImageMagick versions prior to 7.0.9-0. • https://bugzilla.redhat.com/show_bug.cgi?id=1891612 • CWE-190: Integer Overflow or Wraparound •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1

08 Dec 2020 — 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 ... • https://bugzilla.redhat.com/show_bug.cgi?id=1891928 • CWE-122: Heap-based Buffer Overflow •

CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 1

08 Dec 2020 — In the CropImage() and CropImageToTiles() routines of MagickCore/transform.c, rounding calculations performed on unconstrained pixel offsets was causing undefined behavior in the form of integer overflow and out-of-range values as reported by UndefinedBehaviorSanitizer. Such issues could cause a negative impact to application availability or other problems related to undefined behavior, in cases where ImageMagick processes untrusted input data. The upstream patch introduces functionality to constrain the pi... • https://bugzilla.redhat.com/show_bug.cgi?id=1891933 • CWE-190: Integer Overflow or Wraparound •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1

08 Dec 2020 — In CatromWeights(), MeshInterpolate(), InterpolatePixelChannel(), InterpolatePixelChannels(), and InterpolatePixelInfo(), which are all functions in /MagickCore/pixel.c, there were multiple unconstrained pixel offset calculations which were being used with the floor() function. These calculations produced undefined behavior in the form of out-of-range and integer overflows, as identified by UndefinedBehaviorSanitizer. These instances of undefined behavior could be triggered by an attacker who is able to sup... • https://bugzilla.redhat.com/show_bug.cgi?id=1891934 • CWE-190: Integer Overflow or Wraparound •

CVSS: 4.3EPSS: 0%CPEs: 6EXPL: 1

04 Dec 2020 — A flaw was found in ImageMagick in MagickCore/segment.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.9-0. Se encontró un fallo en ImageMagick en el archivo MagickCore/segment.c. • https://bugzilla.redhat.com/show_bug.cgi?id=1894684 • CWE-369: Divide By Zero •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 1

04 Dec 2020 — A flaw was found in ImageMagick in MagickCore/statistic.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.8-69. Se encontró un fallo en ImageMagick en el archivo MagickCore/statistic.c. • https://bugzilla.redhat.com/show_bug.cgi?id=1894686 • CWE-190: Integer Overflow or Wraparound •

CVSS: 4.3EPSS: 0%CPEs: 6EXPL: 1

04 Dec 2020 — A flaw was found in ImageMagick in MagickCore/quantum.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of types `float` and `unsigned char`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.9-0. Se encontró un fallo en ImageMagick en el archivo MagickCore/quantum.h. • https://bugzilla.redhat.com/show_bug.cgi?id=1894687 • CWE-190: Integer Overflow or Wraparound •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1

04 Dec 2020 — Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68. Debido a la falta de comprobación para el valor 0 de "replace_extent", es posible que el desplazamiento "p" se desborde en la función SubstituteString(), lo que podría afectar la disponibilidad de ... • https://bugzilla.redhat.com/show_bug.cgi?id=1894691 • CWE-190: Integer Overflow or Wraparound •

CVSS: 4.3EPSS: 0%CPEs: 6EXPL: 1

04 Dec 2020 — In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impa... • https://bugzilla.redhat.com/show_bug.cgi?id=1898290 • CWE-190: Integer Overflow or Wraparound •