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Red Hat Bugzilla – Attachment 312137 Details for
Bug 455867
openoffice.org: crash on malformed PCX image (CESA-2008-006)
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[patch]
a patch
ipcx.makesafe.patch (text/plain), 864 bytes, created by
Caolan McNamara
on 2008-07-18 13:54:16 UTC
(
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Description:
a patch
Filename:
MIME Type:
Creator:
Caolan McNamara
Created:
2008-07-18 13:54:16 UTC
Size:
864 bytes
patch
obsolete
>Index: source/filter.vcl/ipcx/ipcx.cxx >=================================================================== >RCS file: /cvs/graphics/goodies/source/filter.vcl/ipcx/ipcx.cxx,v >retrieving revision 1.7 >diff -u -r1.7 ipcx.cxx >--- source/filter.vcl/ipcx/ipcx.cxx 14 Nov 2006 16:16:05 -0000 1.7 >+++ source/filter.vcl/ipcx/ipcx.cxx 17 Jul 2008 14:12:36 -0000 >@@ -187,6 +187,13 @@ > > *pPCX >> nbyte; nBitsPerPlanePix = (ULONG)nbyte; > *pPCX >> nMinX >> nMinY >> nMaxX >> nMaxY; >+ >+ if ((nMinX > nMaxX) || (nMinY > nMaxY)) >+ { >+ nStatus = FALSE; >+ return; >+ } >+ > nWidth = nMaxX-nMinX+1; > nHeight = nMaxY-nMinY+1; > >@@ -239,6 +246,12 @@ > nCount = 0; > for ( ny = 0; ny < nHeight; ny++ ) > { >+ if (pPCX->GetError() || pPCX->IsEof()) >+ { >+ nStatus = FALSE; >+ break; >+ } >+ > nPercent = ny * 60 / nHeight + 10; > if ( ny == 0 || nLastPercent + 4 <= nPercent ) > {
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