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SUSE:SLE-12-SP2:GA
ImageMagick.29424
ImageMagick-CVE-2017-8345,8350.patch
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File ImageMagick-CVE-2017-8345,8350.patch of Package ImageMagick.29424
From 8919f333923ad144068fd028d274ca640750e9e6 Mon Sep 17 00:00:00 2001 From: Dirk Lemstra <dirk@git.imagemagick.org> Date: Thu, 27 Apr 2017 11:29:45 +0200 Subject: [PATCH] Refactored MngInfoFreeStruct. --- coders/png.c | 81 ++++++++++++++++++++++-------------------------------------- 1 file changed, 30 insertions(+), 51 deletions(-) Index: ImageMagick-6.8.8-1/coders/png.c =================================================================== --- ImageMagick-6.8.8-1.orig/coders/png.c 2017-05-03 13:55:52.702560619 +0200 +++ ImageMagick-6.8.8-1/coders/png.c 2017-05-03 14:31:17.646030137 +0200 @@ -1701,24 +1701,22 @@ static void MngInfoDiscardObject(MngInfo } } -static void MngInfoFreeStruct(MngInfo *mng_info, - MagickBooleanType *have_mng_structure) +static MngInfo *MngInfoFreeStruct(MngInfo *mng_info) { - if (*have_mng_structure != MagickFalse && (mng_info != (MngInfo *) NULL)) - { - register ssize_t - i; + register ssize_t + i; + + if (mng_info == (MngInfo *) NULL) + return((MngInfo *) NULL); - for (i=1; i < MNG_MAX_OBJECTS; i++) - MngInfoDiscardObject(mng_info,i); + for (i=1; i < MNG_MAX_OBJECTS; i++) + MngInfoDiscardObject(mng_info,i); - if (mng_info->global_plte != (png_colorp) NULL) - mng_info->global_plte=(png_colorp) - RelinquishMagickMemory(mng_info->global_plte); + if (mng_info->global_plte != (png_colorp) NULL) + mng_info->global_plte=(png_colorp) + RelinquishMagickMemory(mng_info->global_plte); - mng_info=(MngInfo *) RelinquishMagickMemory(mng_info); - *have_mng_structure=MagickFalse; - } + return((MngInfo *) RelinquishMagickMemory(mng_info)); } static MngBox mng_minimum_box(MngBox box1,MngBox box2) @@ -3961,7 +3959,6 @@ static Image *ReadPNGImage(const ImageIn *previous; MagickBooleanType - have_mng_structure, logging, status; @@ -4005,7 +4002,6 @@ static Image *ReadPNGImage(const ImageIn /* Allocate a MngInfo structure. */ - have_mng_structure=MagickFalse; mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); if (mng_info == (MngInfo *) NULL) @@ -4016,11 +4012,10 @@ static Image *ReadPNGImage(const ImageIn */ (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); mng_info->image=image; - have_mng_structure=MagickTrue; previous=image; image=ReadOnePNGImage(mng_info,image_info,exception); - MngInfoFreeStruct(mng_info,&have_mng_structure); + mng_info=MngInfoFreeStruct(mng_info); if (image == (Image *) NULL) { @@ -4206,7 +4201,7 @@ static Image *ReadOneJNGImage(MngInfo *m AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - return((Image *) NULL); + return(DestroyImageList(image)); image=SyncNextImageInList(image); } @@ -4379,7 +4374,7 @@ static Image *ReadOneJNGImage(MngInfo *m exception); if (status == MagickFalse) - return((Image *) NULL); + return(DestroyImageList(image)); if ((image_info->ping == MagickFalse) && (jng_color_type >= 12)) { @@ -4409,7 +4404,7 @@ static Image *ReadOneJNGImage(MngInfo *m exception); if (status == MagickFalse) - return((Image *) NULL); + return(DestroyImageList(image)); if (jng_alpha_compression_method == 0) { @@ -4684,7 +4679,7 @@ static Image *ReadOneJNGImage(MngInfo *m color_image_info=DestroyImageInfo(color_image_info); if (jng_image == (Image *) NULL) - return((Image *) NULL); + return(DestroyImageList(image)); if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), @@ -4838,7 +4833,6 @@ static Image *ReadJNGImage(const ImageIn *previous; MagickBooleanType - have_mng_structure, logging, status; @@ -4865,7 +4859,7 @@ static Image *ReadJNGImage(const ImageIn status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) - return((Image *) NULL); + return(DestroyImageList(image)); if (LocaleCompare(image_info->magick,"JNG") != 0) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); @@ -4879,7 +4873,6 @@ static Image *ReadJNGImage(const ImageIn /* Allocate a MngInfo structure. */ - have_mng_structure=MagickFalse; mng_info=(MngInfo *) AcquireMagickMemory(sizeof(*mng_info)); if (mng_info == (MngInfo *) NULL) @@ -4888,11 +4881,10 @@ static Image *ReadJNGImage(const ImageIn /* Initialize members of the MngInfo structure. */ (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); - have_mng_structure=MagickTrue; mng_info->image=image; image=ReadOneJNGImage(mng_info,image_info,exception); - MngInfoFreeStruct(mng_info,&have_mng_structure); + mng_info=MngInfoFreeStruct(mng_info); if (image == (Image *) NULL) { @@ -4920,7 +4912,8 @@ static Image *ReadJNGImage(const ImageIn } #endif -static Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) +static Image *ReadOneMNGImage(MngInfo* mng_info, const ImageInfo *image_info, + ExceptionInfo *exception) { char page_geometry[MaxTextExtent]; @@ -4930,8 +4923,7 @@ static Image *ReadMNGImage(const ImageIn *previous; MagickBooleanType - logging, - have_mng_structure; + logging; volatile int first_mng_object, @@ -4948,9 +4940,6 @@ static Image *ReadMNGImage(const ImageIn MagickOffsetType offset; - MngInfo - *mng_info; - MngBox default_fb, fb, @@ -5021,37 +5010,10 @@ static Image *ReadMNGImage(const ImageIn default_fb.left=0; default_fb.right=0; - /* Open image file. */ - - assert(image_info != (const ImageInfo *) NULL); - assert(image_info->signature == MagickSignature); - (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); - assert(exception != (ExceptionInfo *) NULL); - assert(exception->signature == MagickSignature); - logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter ReadMNGImage()"); - image=AcquireImage(image_info); - mng_info=(MngInfo *) NULL; - status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); - - if (status == MagickFalse) - return((Image *) NULL); - - first_mng_object=MagickFalse; - skipping_loop=(-1); - have_mng_structure=MagickFalse; - - /* Allocate a MngInfo structure. */ - - mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); - - if (mng_info == (MngInfo *) NULL) - ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); - - /* Initialize members of the MngInfo structure. */ + logging=LogMagickEvent(CoderEvent,GetMagickModule(), + " Enter ReadOneMNGImage()"); - (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); - mng_info->image=image; - have_mng_structure=MagickTrue; + image=mng_info->image; if (LocaleCompare(image_info->magick,"MNG") == 0) { @@ -5072,6 +5034,7 @@ static Image *ReadMNGImage(const ImageIn mng_info->exists[0]=MagickTrue; } + skipping_loop=(-1); first_mng_object=MagickTrue; mng_type=0; #if defined(MNG_INSERT_LAYERS) @@ -5234,7 +5197,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - return((Image *) NULL); + return(DestroyImageList(image)); image=SyncNextImageInList(image); mng_info->image=image; @@ -5685,11 +5648,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); - } + return(DestroyImageList(image)); image=SyncNextImageInList(image); } @@ -5895,8 +5854,12 @@ static Image *ReadMNGImage(const ImageIn SEEK_SET); if (offset < 0) - ThrowReaderException(CorruptImageError, - "ImproperImageHeader"); + { + chunk=(unsigned char *) RelinquishMagickMemory( + chunk); + ThrowReaderException(CorruptImageError, + "ImproperImageHeader"); + } } else @@ -6211,7 +6174,10 @@ static Image *ReadMNGImage(const ImageIn } #if defined(MNG_INSERT_LAYERS) if (length < 8) - ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + { + chunk=(unsigned char *) RelinquishMagickMemory(chunk); + ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + } image_width=(size_t) mng_get_long(p); image_height=(size_t) mng_get_long(&p[4]); @@ -6239,11 +6205,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); - } + return(DestroyImageList(image)); image=SyncNextImageInList(image); } @@ -6292,11 +6254,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); - } + return(DestroyImageList(image)); image=SyncNextImageInList(image); } @@ -6341,11 +6299,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); - } + return(DestroyImageList(image)); image=SyncNextImageInList(image); } @@ -6416,16 +6370,13 @@ static Image *ReadMNGImage(const ImageIn (void) CloseBlob(previous); } - MngInfoFreeStruct(mng_info,&have_mng_structure); return((Image *) NULL); } if (image->columns == 0 || image->rows == 0) { (void) CloseBlob(image); - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); + return(DestroyImageList(image)); } mng_info->image=image; @@ -6536,11 +6487,7 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) - { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); - } + return(DestroyImageList(image)); large_image=SyncNextImageInList(image); @@ -6620,7 +6567,6 @@ static Image *ReadMNGImage(const ImageIn (next == (PixelPacket *) NULL)) { image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); ThrowReaderException(ResourceLimitError, "MemoryAllocationFailed"); } @@ -7085,14 +7031,11 @@ static Image *ReadMNGImage(const ImageIn AcquireNextImage(image_info,image); if (GetNextImageInList(image) == (Image *) NULL) { - image=DestroyImageList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " Allocation failed, returning NULL."); - return((Image *) NULL); + return(DestroyImageList(image)); } image=SyncNextImageInList(image); } @@ -7128,7 +7071,7 @@ static Image *ReadMNGImage(const ImageIn CoderError,"Linked list is corrupted, beginning of list not found", "`%s'",image_info->filename); - return((Image *) NULL); + return(DestroyImageList(image)); } image=GetPreviousImageInList(image); @@ -7166,11 +7109,7 @@ static Image *ReadMNGImage(const ImageIn (void) ThrowMagickException(&image->exception,GetMagickModule(), CoderError,"No visible images in file","`%s'",image_info->filename); - if (image != (Image *) NULL) - image=DestroyImageList(image); - - MngInfoFreeStruct(mng_info,&have_mng_structure); - return((Image *) NULL); + return(DestroyImageList(image)); } if (mng_info->ticks_per_second) @@ -7302,9 +7241,63 @@ static Image *ReadMNGImage(const ImageIn } } - image=GetFirstImageInList(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); - have_mng_structure=MagickFalse; + if (logging != MagickFalse) + (void) LogMagickEvent(CoderEvent,GetMagickModule(), + " exit ReadOneJNGImage();"); + + return(image); +} + +static Image *ReadMNGImage(const ImageInfo *image_info,ExceptionInfo *exception) +{ + Image + *image; + + MagickBooleanType + logging, + status; + + MngInfo + *mng_info; + + /* Open image file. */ + + assert(image_info != (const ImageInfo *) NULL); + assert(image_info->signature == MagickSignature); + (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image_info->filename); + assert(exception != (ExceptionInfo *) NULL); + assert(exception->signature == MagickSignature); + logging=LogMagickEvent(CoderEvent,GetMagickModule(),"Enter ReadMNGImage()"); + image=AcquireImage(image_info); + mng_info=(MngInfo *) NULL; + status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); + + if (status == MagickFalse) + return((Image *) NULL); + + /* Allocate a MngInfo structure. */ + + mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); + + if (mng_info == (MngInfo *) NULL) + ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); + + /* Initialize members of the MngInfo structure. */ + + (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); + mng_info->image=image; + image=ReadOneMNGImage(mng_info,image_info,exception); + mng_info=MngInfoFreeStruct(mng_info); + + if (image == (Image *) NULL) + { + if (logging != MagickFalse) + (void) LogMagickEvent(CoderEvent,GetMagickModule(), + "exit ReadMNGImage() with error"); + + return((Image *) NULL); + } + (void) CloseBlob(image); if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit ReadMNGImage()"); @@ -11500,7 +11493,6 @@ static MagickBooleanType WritePNGImage(c MagickBooleanType excluding, logging, - have_mng_structure, status; MngInfo @@ -11525,7 +11517,6 @@ static MagickBooleanType WritePNGImage(c /* Allocate a MngInfo structure. */ - have_mng_structure=MagickFalse; mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); if (mng_info == (MngInfo *) NULL) @@ -11537,7 +11528,6 @@ static MagickBooleanType WritePNGImage(c (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); mng_info->image=image; mng_info->equal_backgrounds=MagickTrue; - have_mng_structure=MagickTrue; /* See if user has requested a specific PNG subformat */ @@ -12276,7 +12266,7 @@ static MagickBooleanType WritePNGImage(c (void) CloseBlob(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); + mng_info=MngInfoFreeStruct(mng_info); if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WritePNGImage()"); @@ -12877,7 +12867,6 @@ static MagickBooleanType WriteOneJNGImag static MagickBooleanType WriteJNGImage(const ImageInfo *image_info,Image *image) { MagickBooleanType - have_mng_structure, logging, status; @@ -12900,7 +12889,6 @@ static MagickBooleanType WriteJNGImage(c /* Allocate a MngInfo structure. */ - have_mng_structure=MagickFalse; mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); if (mng_info == (MngInfo *) NULL) ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); @@ -12909,15 +12897,14 @@ static MagickBooleanType WriteJNGImage(c */ (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); mng_info->image=image; - have_mng_structure=MagickTrue; (void) WriteBlob(image,8,(const unsigned char *) "\213JNG\r\n\032\n"); status=WriteOneJNGImage(mng_info,image_info,image); + mng_info=MngInfoFreeStruct(mng_info); (void) CloseBlob(image); (void) CatchImageException(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(), " exit WriteJNGImage()"); @@ -12936,7 +12923,6 @@ static MagickBooleanType WriteMNGImage(c *next_image; MagickBooleanType - have_mng_structure, status; volatile MagickBooleanType @@ -12998,7 +12984,6 @@ static MagickBooleanType WriteMNGImage(c /* Allocate a MngInfo structure. */ - have_mng_structure=MagickFalse; mng_info=(MngInfo *) AcquireMagickMemory(sizeof(MngInfo)); if (mng_info == (MngInfo *) NULL) ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); @@ -13007,7 +12992,6 @@ static MagickBooleanType WriteMNGImage(c */ (void) ResetMagickMemory(mng_info,0,sizeof(MngInfo)); mng_info->image=image; - have_mng_structure=MagickTrue; write_mng=LocaleCompare(image_info->magick,"MNG") == 0; /* @@ -13765,7 +13749,7 @@ static MagickBooleanType WriteMNGImage(c if (status == MagickFalse) { - MngInfoFreeStruct(mng_info,&have_mng_structure); + mng_info=MngInfoFreeStruct(mng_info); (void) CloseBlob(image); return(MagickFalse); } @@ -13798,7 +13782,7 @@ static MagickBooleanType WriteMNGImage(c Relinquish resources. */ (void) CloseBlob(image); - MngInfoFreeStruct(mng_info,&have_mng_structure); + mng_info=MngInfoFreeStruct(mng_info); if (logging != MagickFalse) (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit WriteMNGImage()");
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