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 prior to 7.0.9-0.

The TIFFSetProfiles function in coders/tiff.c in ImageMagick 7.0.6 has incorrect expectations about whether LibTIFF TIFFGetField return values imply that data validation has occurred, which allows remote attackers to cause a denial of service (use-after-free after an invalid call to TIFFSetField, and application crash) via a crafted file.

In ImageMagick 7.0.7-16 Q16 x86_64 2017-12-25, there is a use-after-free in ReadOneMNGImage in coders/png.c, which allows attackers to cause a denial of service via a crafted MNG image file that is mishandled in an MngInfoDiscardObject call.

A use-after-free in RenderFreetype in MagickCore/annotate.c in ImageMagick 7.0.7-4 Q16 allows attackers to crash the application via a crafted font file, because the FT_Done_Glyph function (from FreeType 2) is called at an incorrect place in the ImageMagick code.

In ImageMagick 7.0.6-1, a use-after-free vulnerability was found in the function ReadWMFImage in coders/wmf.c, which allows attackers to cause a denial of service.

Use-after-free vulnerability in the DestroyImage function in image.c in ImageMagick before 7.0.6-6 allows remote attackers to cause a denial of service via a crafted file.

In ImageMagick 7.x before 7.0.8-42 and 6.x before 6.9.10-42, there is a use after free vulnerability in the UnmapBlob function that allows an attacker to cause a denial of service by sending a crafted file.

magick/attribute.c in ImageMagick 7.0.3-2 allows remote attackers to cause a denial of service (use-after-free) via a crafted file.

The ReadCAPTIONImage function in coders/caption.c in ImageMagick 7.0.7-3 allows remote attackers to cause a denial of service (infinite loop) via a crafted font file.

In ImageMagick before 6.9.9-0 and 7.x before 7.0.6-1, a crafted PNG file could trigger a crash because there was an insufficient check for short files.

WritePALMImage() in /coders/palm.c used size_t casts in several areas of a calculation which could lead to values outside the range of representable type `unsigned long` undefined behavior when a crafted input file was processed by ImageMagick. The patch casts to `ssize_t` instead to avoid this issue. Red Hat Product Security marked the Severity 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 versions prior to ImageMagick 7.0.9-0.

When ImageMagick 7.0.6-1 processes a crafted file in convert, it can lead to a heap-based buffer over-read in the WritePSImage() function in coders/ps.c.

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 versions prior to 7.0.8-68.

The mng_get_long function in coders/png.c in ImageMagick 7.0.6-0 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted MNG image.

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.

In ParseMetaGeometry() of MagickCore/geometry.c, image height and width calculations can lead to divide-by-zero conditions which also lead to undefined behavior. This flaw can be triggered by a crafted input file processed by ImageMagick and could impact application availability. The patch uses multiplication in addition to the function `PerceptibleReciprocal()` in order to prevent such divide-by-zero conditions. This flaw affects ImageMagick versions prior to 7.0.9-0.

In ImageMagick 7.0.7-16 Q16 x86_64 2017-12-22, an infinite loop vulnerability was found in the function ReadTXTImage in coders/txt.c, which allows attackers to cause a denial of service (CPU exhaustion) via a crafted image file that is mishandled in a GetImageIndexInList call.

ImageMagick 7.0.7-22 Q16 has memory leaks in the EncodeImageAttributes function in coders/json.c, as demonstrated by the ReadPSDLayersInternal function in coders/psd.c.

In ImageMagick 7.0.7-17 Q16, there is a Memory Leak in ReadPWPImage in coders/pwp.c.

The ReadRLEImage function in coders/rle.c in ImageMagick allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file.

coders/mat.c in ImageMagick before 6.9.4-5 allows remote attackers to cause a denial of service (application crash) via a mat file with an invalid number of frames.

The MSL interpreter in ImageMagick before 6.9.6-4 allows remote attackers to cause a denial of service (segmentation fault and application crash) via a crafted XML file.

Heap-based buffer overflow in the CalcMinMax function in coders/mat.c in ImageMagick before 6.9.4-0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted mat file.

The ReadGROUP4Image function in coders/tiff.c in ImageMagick before 7.0.1-10 does not check the return value of the fputc function, which allows remote attackers to cause a denial of service (crash) via a crafted image file.

In ImageMagick 7.0.6-6, a memory leak vulnerability was found in the function WriteOneJNGImage in coders/png.c, which allows attackers to cause a denial of service (WriteJNGImage memory consumption) via a crafted file.

In ImageMagick 7.0.6-6, a memory leak vulnerability was found in the function WritePCXImage in coders/pcx.c, which allows attackers to cause a denial of service via a crafted file.

Null Pointer Dereference in the IdentifyImage function in MagickCore/identify.c in ImageMagick through 7.0.6-10 allows an attacker to perform denial of service by sending a crafted image file.

In ImageMagick 7.0.6-8, a memory leak vulnerability was found in the function ReadMIFFImage in coders/miff.c, which allows attackers to cause a denial of service (memory consumption in NewLinkedList in MagickCore/linked-list.c) via a crafted file.

The ReadHDRImage function in coders/hdr.c in ImageMagick 6.x and 7.x allows remote attackers to cause a denial of service (infinite loop) via a crafted HDR file.

A heap-based buffer over-read in SampleImage() in MagickCore/resize.c in ImageMagick 7.0.6-8 Q16 allows remote attackers to cause a denial of service via a crafted file.

ImageMagick 6.x before 6.9.0-5 Beta allows remote attackers to cause a denial of service (infinite loop) via a crafted MIFF file.

In ImageMagick 7.0.6-6, a memory leak vulnerability was found in the function formatIPTC in coders/meta.c, which allows attackers to cause a denial of service (WriteMETAImage memory consumption) via a crafted file.

Buffer overflow in ImageMagick before 6.9.0-4 Beta allows remote attackers to cause a denial of service (application crash) via a crafted SUN file.

ImageMagick 7.0.6-2 has a memory leak vulnerability in WriteMSLImage in coders/msl.c.

In ImageMagick before 6.9.9-3 and 7.x before 7.0.6-3, there is a missing NULL check in the ReadMATImage function in coders/mat.c, leading to a denial of service (assertion failure and application exit) in the DestroyImageInfo function in MagickCore/image.c.

The ReadBlobByte function in coders/pdb.c in ImageMagick 6.x before 6.9.0-5 Beta allows remote attackers to cause a denial of service (infinite loop) via a crafted PDB file.

Integer truncation issue in coders/pict.c in ImageMagick before 7.0.5-0 allows remote attackers to cause a denial of service (application crash) via a crafted .pict file.

The ReadPICTImage function in coders/pict.c in ImageMagick 7.0.6-3 allows attackers to cause a denial of service (memory leak) via a crafted file.

A flaw was found in ImageMagick in MagickCore/resize.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. The highest threat from this vulnerability is to system availability.

In ImageMagick 7.0.8-13 Q16, there is a heap-based buffer over-read in the EncodeImage function of coders/pict.c, which allows attackers to cause a denial of service via a crafted SVG image file.

ImageMagick 7.0.7-28 has a memory leak vulnerability in WritePDBImage in coders/pdb.c.

In ImageMagick 7.0.8-13 Q16, there is an infinite loop in the ReadBMPImage function of the coders/bmp.c file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

In ImageMagick 7.0.8-13 Q16, there is a heap-based buffer over-read in the SVGStripString function of coders/svg.c, which allows attackers to cause a denial of service via a crafted SVG image file.

There is a memory leak in the function WriteMSLImage of coders/msl.c in ImageMagick 7.0.8-13 Q16, and the function ProcessMSLScript of coders/msl.c in GraphicsMagick before 1.3.31.

ImageMagick 7.0.7-28 has a memory leak vulnerability in WriteSGIImage in coders/sgi.c.

ImageMagick 7.0.8-6 has a memory leak vulnerability in the TIFFWritePhotoshopLayers function in coders/tiff.c.

The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.

ImageMagick 7.0.8-5 has a memory leak vulnerability in the function ReadOneJNGImage in coders/png.c.

There is an excessive memory allocation issue in the functions ReadBMPImage of coders/bmp.c and ReadDIBImage of coders/dib.c in ImageMagick 7.0.8-11, which allows remote attackers to cause a denial of service via a crafted image file.

In ImageMagick 7.0.7-29 and earlier, a memory leak in the formatIPTCfromBuffer function in coders/meta.c was found.