Memory leak in WritePCXImage

[jgj212]

Prerequisites

• I have written a descriptive issue title
• I have verified that I am using the latest version of ImageMagick
• I have searched open and closed issues to ensure it has not already been reported

Description

Memory leak in WritePCXImage

Steps to Reproduce

      page_table=(MagickOffsetType *) AcquireQuantumMemory(1024UL,  		//line 923, allocation for page_table
        sizeof(*page_table));
      if (page_table == (MagickOffsetType *) NULL)
        ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");

    pcx_colormap=(unsigned char *) AcquireQuantumMemory(256UL,
      3*sizeof(*pcx_colormap));
    if (pcx_colormap == (unsigned char *) NULL)
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 	//line 1001, memory leak as not free page_table

System Configuration

• ImageMagick version: 7.0.7-28
• Environment (Operating system, version and so on): Ubuntu14.04 x86_64
• Additional information:

Credit: ADLab of Venustech

[urban-warrior]

Thanks for the problem report. We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ https://www.imagemagick.org/download/beta/ by sometime tomorrow.

[nohmask]

This was assigned CVE-2018-18016.

[octes]

Hi,
does anyone know what the relation to CVE-2017-13058 (#666) is. The fix seems similar.

Thanks