
CVE-2020-25667
https://notcve.org/view.php?id=CVE-2020-25667
08 Dec 2020 — TIFFGetProfiles() in /coders/tiff.c calls strstr() which causes a large out-of-bounds read when it searches for `"dc:format=\"image/dng\"` within `profile` due to improper string handling, when a crafted input file is provided to ImageMagick. The patch uses a StringInfo type instead of a raw C string to remedy this. This could cause an impact to availability of the application. This flaw affects ImageMagick versions prior to 7.0.9-0. La función TIFFGetProfiles() en el archivo /coders/tiff.c llama a la funci... • https://bugzilla.redhat.com/show_bug.cgi?id=1891613 • CWE-122: Heap-based Buffer Overflow •

CVE-2020-25664 – Ubuntu Security Notice USN-7068-1
https://notcve.org/view.php?id=CVE-2020-25664
08 Dec 2020 — In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68. En la función WriteOnePNGImage() del codificad... • https://bugzilla.redhat.com/show_bug.cgi?id=1891605 • CWE-122: Heap-based Buffer Overflow •

CVE-2020-25663
https://notcve.org/view.php?id=CVE-2020-25663
08 Dec 2020 — A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called. This could occur if an attacker is able to submit a malicious image file to be processed by ImageMagick and could lead to denial of service. It likely would not lead to anything further because the memory is used as pixel data and not e.g. a function pointer. This flaw affects ImageMagick versions pri... • https://bugzilla.redhat.com/show_bug.cgi?id=1891601 • CWE-416: Use After Free •

CVE-2020-27750
https://notcve.org/view.php?id=CVE-2020-27750
08 Dec 2020 — A flaw was found in ImageMagick in MagickCore/colorspace-private.h and 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 type `unsigned char` and 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 7.0.8-68. Se encontró un fallo ... • https://bugzilla.redhat.com/show_bug.cgi?id=1891984 • CWE-369: Divide By Zero •

CVE-2020-27751 – Ubuntu Security Notice USN-4988-1
https://notcve.org/view.php?id=CVE-2020-27751
08 Dec 2020 — A flaw was found in ImageMagick in MagickCore/quantum-export.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 long` as well as a shift exponent that is too large for 64-bit type. 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 encontr... • https://bugzilla.redhat.com/show_bug.cgi?id=1891994 • CWE-190: Integer Overflow or Wraparound •

CVE-2020-27754 – Ubuntu Security Notice USN-7068-1
https://notcve.org/view.php?id=CVE-2020-27754
08 Dec 2020 — In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69. En la función IntensityCompare() del archivo /magick/quantize.c, se pr... • https://bugzilla.redhat.com/show_bug.cgi?id=1894231 • CWE-190: Integer Overflow or Wraparound •

CVE-2020-27757
https://notcve.org/view.php?id=CVE-2020-27757
08 Dec 2020 — A floating point math calculation in ScaleAnyToQuantum() of /MagickCore/quantum-private.h could lead to undefined behavior in the form of a value outside the range of type unsigned long long. The flaw could be triggered by a crafted input file under certain conditions when it is processed by ImageMagick. Red Hat Product Security marked this as Low because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick vers... • https://bugzilla.redhat.com/show_bug.cgi?id=1894234 • CWE-190: Integer Overflow or Wraparound •

CVE-2020-27758
https://notcve.org/view.php?id=CVE-2020-27758
08 Dec 2020 — A flaw was found in ImageMagick in coders/txt.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 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 7.0.8-68. Se encontró uno fallo en ImageMagick en el archivo coders/txt.c. • https://bugzilla.redhat.com/show_bug.cgi?id=1894236 • CWE-190: Integer Overflow or Wraparound •

CVE-2020-25665
https://notcve.org/view.php?id=CVE-2020-25665
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 •

CVE-2020-25666
https://notcve.org/view.php?id=CVE-2020-25666
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 •