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Image.Load throws DivideByZeroException #822

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Metalnem opened this issue Jan 28, 2019 · 0 comments
Closed
4 tasks done

Image.Load throws DivideByZeroException #822

Metalnem opened this issue Jan 28, 2019 · 0 comments
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@Metalnem
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Prerequisites

  • I have written a descriptive issue title
  • I have verified that I am running the latest version of ImageSharp
  • I have verified if the problem exist in both DEBUG and RELEASE mode
  • I have searched open and closed issues to ensure it has not already been reported

Description

Image.Load throws DivideByZeroException when loading malformed JPG file.

Steps to Reproduce

Run the following code snippet with the path variable containing the path to the file from the
attached archive:

Image.Load(path);

You will get the following stack trace:

System.DivideByZeroException: Attempted to divide by zero.
   at SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.JpegComponentPostProcessor..ctor(MemoryAllocator memoryAllocator, JpegImagePostProcessor imagePostProcessor, IJpegComponent component)
   at SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.JpegImagePostProcessor..ctor(Configuration configuration, IRawJpegData rawJpeg)
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoderCore.PostProcessIntoImage[TPixel]()
   at SixLabors.ImageSharp.Formats.Jpeg.JpegDecoder.Decode[TPixel](Configuration configuration, Stream stream)
   at SixLabors.ImageSharp.Image.Decode[TPixel](Stream stream, Configuration config)
   at SixLabors.ImageSharp.Image.WithSeekableStream[T](Configuration config, Stream stream, Func`2 action)
   at SixLabors.ImageSharp.Image.Load[TPixel](Configuration config, Stream stream, IImageFormat& format)
   at SixLabors.ImageSharp.Image.Load[TPixel](Configuration config, Byte[] data)

System Configuration

  • ImageSharp version: Beta 6
  • Environment (Operating system, version and so on): Windows 10 Pro 1803
  • .NET Framework version: .NET Core 2.2.102

Found via SharpFuzz.

@Metalnem Metalnem changed the title Image.Load throws DivideByZeroException (2) Image.Load throws DivideByZeroException Jan 28, 2019
@JimBobSquarePants JimBobSquarePants added this to the 1.0.0-rc1 milestone Feb 15, 2019
JimBobSquarePants added a commit that referenced this issue Feb 15, 2019
@JimBobSquarePants JimBobSquarePants mentioned this issue Feb 15, 2019
11 tasks
@JimBobSquarePants JimBobSquarePants self-assigned this Feb 15, 2019
antonfirsov pushed a commit to antonfirsov/ImageSharp that referenced this issue Nov 11, 2019
* Nomalize jpeg exceptions. Fix SixLabors#821

* Fix SixLabors#822

* Fix SixLabors#823

* Check for correct QT index. Touch SixLabors#824

* Check DHT props. Touch SixLabors#824

* Limit sampling factors to 1 & 2. Touch SixLabors#824

* Add already fixed image 4. Touch SixLabors#824

* Check for excessive code lengths. Touch SixLabors#824

* Add already fixed image 6. Touch SixLabors#824

* Lint progressive scan details. Touch SixLabors#824

* Add already fixed image 8. Fix SixLabors#824

* Remove duplicate per-block checks

* Add already fixed image 1. Touch SixLabors#825

* Don't throw on bad JFIF density units.

* Add already fixed image 3. Touch SixLabors#825

* Add already fixed image 4. Fix SixLabors#825

* Check SOFn marker length. Touch SixLabors#826

* Add already fixed image 2. Touch SixLabors#826

* Add already fixed image 3. Fix SixLabors#826

* Add fixed already fixed image. Fix SixLabors#827

* Revert unneeded bounds check introduced in SixLabors#804
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