rpms/kdegraphics/FC-3 post-3.4.3-kdegraphics-CAN-2005-3193.diff, NONE, 1.1 kdegraphics.spec, 1.45, 1.46

fedora-cvs-commits at redhat.com fedora-cvs-commits at redhat.com
Mon Jan 16 16:01:45 UTC 2006


Author: than

Update of /cvs/dist/rpms/kdegraphics/FC-3
In directory cvs.devel.redhat.com:/tmp/cvs-serv19409

Modified Files:
	kdegraphics.spec 
Added Files:
	post-3.4.3-kdegraphics-CAN-2005-3193.diff 
Log Message:
apply patch to fix CAN-2005-3193, #175107


post-3.4.3-kdegraphics-CAN-2005-3193.diff:
 goo/gmem.c          |   23 +++++++++++++++++++++++
 goo/gmem.h          |    9 +++++++++
 xpdf/JBIG2Stream.cc |   34 +++++++++++++++++++++++++++++++++-
 xpdf/JPXStream.cc   |   11 ++++++++---
 xpdf/Stream.cc      |   48 ++++++++++++++++++++++++++++++++++++++++++++++--
 xpdf/Stream.h       |    3 +++
 6 files changed, 122 insertions(+), 6 deletions(-)

--- NEW FILE post-3.4.3-kdegraphics-CAN-2005-3193.diff ---
Index: kpdf/xpdf/xpdf/JBIG2Stream.cc
===================================================================
--- kpdf/xpdf/xpdf/JBIG2Stream.cc	(revision 466932)
+++ kpdf/xpdf/xpdf/JBIG2Stream.cc	(revision 488714)
@@ -7,6 +7,7 @@
 //========================================================================
 
 #include <aconf.h>
+#include <limits.h>
 
 #ifdef USE_GCC_PRAGMAS
 #pragma implementation
@@ -681,6 +682,13 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, 
   w = wA;
   h = hA;
   line = (wA + 7) >> 3;
+
+  if (h < 0 || line <= 0 || h >= INT_MAX / line) {
+    error(-1, "invalid width/height");
+    data = NULL;
+    return;
+  }
+
   data = (Guchar *)gmalloc(h * line);
 }
 
@@ -690,6 +698,13 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, 
   w = bitmap->w;
   h = bitmap->h;
   line = bitmap->line;
+
+  if (h < 0 || line <= 0 || h >= INT_MAX / line) {
+    error(-1, "invalid width/height");
+    data = NULL;
+    return;
+  }
+
   data = (Guchar *)gmalloc(h * line);
   memcpy(data, bitmap->data, h * line);
 }
@@ -716,7 +731,10 @@ JBIG2Bitmap *JBIG2Bitmap::getSlice(Guint
 }
 
 void JBIG2Bitmap::expand(int newH, Guint pixel) {
-  if (newH <= h) {
+  if (newH <= h || line <= 0 || newH >= INT_MAX / line) {
+    error(-1, "invalid width/height");
+    gfree(data);
+    data = NULL;
     return;
   }
   data = (Guchar *)grealloc(data, newH * line);
@@ -2256,6 +2274,15 @@ void JBIG2Stream::readHalftoneRegionSeg(
     error(getPos(), "Bad symbol dictionary reference in JBIG2 halftone segment");
     return;
   }
+  if (gridH == 0 || gridW >= INT_MAX / gridH) {
+    error(getPos(), "Bad size in JBIG2 halftone segment");
+    return;
+  }
+  if (w == 0 || h >= INT_MAX / w) {
+     error(getPos(), "Bad size in JBIG2 bitmap segment");
+    return;
+  }
+
   patternDict = (JBIG2PatternDict *)seg;
   bpp = 0;
   i = 1;
@@ -2887,6 +2914,11 @@ JBIG2Bitmap *JBIG2Stream::readGenericRef
   JBIG2BitmapPtr tpgrCXPtr0, tpgrCXPtr1, tpgrCXPtr2;
   int x, y, pix;
 
+  if (w < 0 || h <= 0 || w >= INT_MAX / h) {
+    error(-1, "invalid width/height");
+    return NULL;
+  }
+
   bitmap = new JBIG2Bitmap(0, w, h);
   bitmap->clearToZero();
 
Index: kpdf/xpdf/xpdf/Stream.cc
===================================================================
--- kpdf/xpdf/xpdf/Stream.cc	(revision 466932)
+++ kpdf/xpdf/xpdf/Stream.cc	(revision 488714)
@@ -15,6 +15,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>
+#include <limits.h>
 #ifndef WIN32
 #include <unistd.h>
 #endif
@@ -413,13 +414,27 @@ StreamPredictor::StreamPredictor(Stream 
   width = widthA;
   nComps = nCompsA;
   nBits = nBitsA;
+  predLine = NULL;
+  ok = gFalse;
+
+  if (width <= 0 || nComps <= 0 || nBits <= 0 ||
+      nComps >= INT_MAX / nBits ||
+      width >= INT_MAX / nComps / nBits)
+    return;
 
   nVals = width * nComps;
+  if (nVals * nBits + 7 <= 0)
+    return;
   pixBytes = (nComps * nBits + 7) >> 3;
   rowBytes = ((nVals * nBits + 7) >> 3) + pixBytes;
+  if (rowBytes < 0)
+    return;
+
   predLine = (Guchar *)gmalloc(rowBytes);
   memset(predLine, 0, rowBytes);
   predIdx = rowBytes;
+
+  ok = gTrue;
 }
 
 StreamPredictor::~StreamPredictor() {
@@ -1013,6 +1028,10 @@ LZWStream::LZWStream(Stream *strA, int p
     FilterStream(strA) {
   if (predictor != 1) {
     pred = new StreamPredictor(this, predictor, columns, colors, bits);
+    if (!pred->isOk()) {
+      delete pred;
+      pred = NULL;
+    }
   } else {
     pred = NULL;
   }
@@ -1261,6 +1280,10 @@ CCITTFaxStream::CCITTFaxStream(Stream *s
   endOfLine = endOfLineA;
   byteAlign = byteAlignA;
   columns = columnsA;
+  if (columns < 1 || columns >= INT_MAX / sizeof(short)) {
+    error(-1, "invalid number of columns");
+    exit(1);
+  }
   rows = rowsA;
   endOfBlock = endOfBlockA;
   black = blackA;
@@ -2899,6 +2922,11 @@ GBool DCTStream::readBaselineSOF() {
   height = read16();
   width = read16();
   numComps = str->getChar();
+  if (numComps <= 0 || numComps > 4) {
+    numComps = 0;
+    error(getPos(), "Bad number of components in DCT stream");
+    return gFalse;
+  }
   if (prec != 8) {
     error(getPos(), "Bad DCT precision %d", prec);
     return gFalse;
@@ -2925,6 +2953,11 @@ GBool DCTStream::readProgressiveSOF() {
   height = read16();
   width = read16();
   numComps = str->getChar();
+  if (numComps <= 0 || numComps > 4) {
+    numComps = 0;
+    error(getPos(), "Bad number of components in DCT stream");
+    return gFalse;
+  }
   if (prec != 8) {
     error(getPos(), "Bad DCT precision %d", prec);
     return gFalse;
@@ -2947,6 +2980,11 @@ GBool DCTStream::readScanInfo() {
 
   length = read16() - 2;
   scanInfo.numComps = str->getChar();
+  if (scanInfo.numComps <= 0 || scanInfo.numComps > 4) {
+    scanInfo.numComps = 0;
+    error(getPos(), "Bad number of components in DCT stream");
+    return gFalse;
+  }
   --length;
   if (length != 2 * scanInfo.numComps + 3) {
     error(getPos(), "Bad DCT scan info block");
@@ -3021,12 +3059,12 @@ GBool DCTStream::readHuffmanTables() {
   while (length > 0) {
     index = str->getChar();
     --length;
-    if ((index & 0x0f) >= 4) {
+    if ((index & ~0x10) >= 4 || (index & ~0x10) < 0) {
       error(getPos(), "Bad DCT Huffman table");
       return gFalse;
     }
     if (index & 0x10) {
-      index &= 0x0f;
+      index &= 0x03;
       if (index >= numACHuffTables)
 	numACHuffTables = index+1;
       tbl = &acHuffTables[index];
@@ -3144,9 +3182,11 @@ int DCTStream::readMarker() {
   do {
     do {
       c = str->getChar();
+      if(c == EOF) return EOF;
     } while (c != 0xff);
     do {
       c = str->getChar();
+      if(c == EOF) return EOF;
     } while (c == 0xff);
   } while (c == 0x00);
   return c;
@@ -3258,6 +3298,10 @@ FlateStream::FlateStream(Stream *strA, i
     FilterStream(strA) {
   if (predictor != 1) {
     pred = new StreamPredictor(this, predictor, columns, colors, bits);
+    if (!pred->isOk()) {
+      delete pred;
+      pred = NULL;
+    }
   } else {
     pred = NULL;
   }
Index: kpdf/xpdf/xpdf/Stream.h
===================================================================
--- kpdf/xpdf/xpdf/Stream.h	(revision 466932)
+++ kpdf/xpdf/xpdf/Stream.h	(revision 488714)
@@ -233,6 +233,8 @@ public:
 
   ~StreamPredictor();
 
+  GBool isOk() { return ok; }
+
   int lookChar();
   int getChar();
 
@@ -250,6 +252,7 @@ private:
   int rowBytes;			// bytes per line
   Guchar *predLine;		// line buffer
   int predIdx;			// current index in predLine
+  GBool ok;
 };
 
 //------------------------------------------------------------------------
Index: kpdf/xpdf/xpdf/JPXStream.cc
===================================================================
--- kpdf/xpdf/xpdf/JPXStream.cc	(revision 466932)
+++ kpdf/xpdf/xpdf/JPXStream.cc	(revision 488714)
@@ -7,6 +7,7 @@
 //========================================================================
 
 #include <aconf.h>
+#include <limits.h>
 
 #ifdef USE_GCC_PRAGMAS
 #pragma implementation
@@ -666,7 +667,7 @@ GBool JPXStream::readCodestream(Guint /*
   int segType;
   GBool haveSIZ, haveCOD, haveQCD, haveSOT;
   Guint precinctSize, style;
-  Guint segLen, capabilities, comp, i, j, r;
+  Guint segLen, capabilities, nTiles, comp, i, j, r;
 
   //----- main header
   haveSIZ = haveCOD = haveQCD = haveSOT = gFalse;
@@ -701,8 +702,12 @@ GBool JPXStream::readCodestream(Guint /*
 	            / img.xTileSize;
       img.nYTiles = (img.ySize - img.yTileOffset + img.yTileSize - 1)
 	            / img.yTileSize;
-      img.tiles = (JPXTile *)gmalloc(img.nXTiles * img.nYTiles *
-				     sizeof(JPXTile));
+      nTiles = img.nXTiles * img.nYTiles;
+      if (img.nXTiles <= 0 || img.nYTiles <= 0 || img.nXTiles >= INT_MAX / img.nYTiles) {
+        error(getPos(), "Bad tile count in JPX SIZ marker segment");  
+        return gFalse;
+      }
+      img.tiles = (JPXTile *)gmallocn(nTiles, sizeof(JPXTile));
       for (i = 0; i < img.nXTiles * img.nYTiles; ++i) {
 	img.tiles[i].tileComps = (JPXTileComp *)gmalloc(img.nComps *
 							sizeof(JPXTileComp));
Index: kpdf/xpdf/goo/gmem.c
===================================================================
--- kpdf/xpdf/goo/gmem.c	(revision 466932)
+++ kpdf/xpdf/goo/gmem.c	(revision 488714)
@@ -11,6 +11,7 @@
 #include <stdlib.h>
 #include <stddef.h>
 #include <string.h>
+#include <limits.h>
 #include "gmem.h"
 
 #ifdef DEBUG_MEM
@@ -175,6 +176,28 @@ void gfree(void *p) {
 #endif
 }
 
+void *gmallocn(int nObjs, int objSize) {
+  int n;
+
+  n = nObjs * objSize;
+  if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) {
+    fprintf(stderr, "Bogus memory allocation size\n");
+    exit(1);
+  }
+  return gmalloc(n);
+}
+
+void *greallocn(void *p, int nObjs, int objSize) {
+  int n;
+
+  n = nObjs * objSize;
+  if (objSize <= 0 || nObjs < 0 || nObjs >= INT_MAX / objSize) {
+    fprintf(stderr, "Bogus memory allocation size\n");
+    exit(1);
+  }
+  return grealloc(p, n);
+}
+
 #ifdef DEBUG_MEM
 void gMemReport(FILE *f) {
   GMemHdr *p;
Index: kpdf/xpdf/goo/gmem.h
===================================================================
--- kpdf/xpdf/goo/gmem.h	(revision 466932)
+++ kpdf/xpdf/goo/gmem.h	(revision 488714)
@@ -28,6 +28,15 @@ extern void *gmalloc(size_t size);
 extern void *grealloc(void *p, size_t size);
 
 /*
+ * These are similar to gmalloc and grealloc, but take an object count
+ * and size.  The result is similar to allocating nObjs * objSize
+ * bytes, but there is an additional error check that the total size
+ * doesn't overflow an int.
+ */
+extern void *gmallocn(int nObjs, int objSize);
+extern void *greallocn(void *p, int nObjs, int objSize);
+
+/*
  * Same as free, but checks for and ignores NULL pointers.
  */
 extern void gfree(void *p);


Index: kdegraphics.spec
===================================================================
RCS file: /cvs/dist/rpms/kdegraphics/FC-3/kdegraphics.spec,v
retrieving revision 1.45
retrieving revision 1.46
diff -u -r1.45 -r1.46
--- kdegraphics.spec	15 Sep 2005 11:15:03 -0000	1.45
+++ kdegraphics.spec	16 Jan 2006 16:01:24 -0000	1.46
@@ -10,7 +10,7 @@
 %define no_scanner_archs s390 s390x
 
 Version: 3.4.2
-Release: 0.fc3.2
+Release: 0.fc3.3
 Name: kdegraphics
 Summary: K Desktop Environment - Graphics Applications
 Epoch: 7
@@ -24,6 +24,9 @@
 Patch1: kdegraphics-3.3.0-misc.patch
 Patch2: kdegraphics-3.3.1-xorg.patch
 
+# securitiy fixes
+Patch100: post-3.4.3-kdegraphics-CAN-2005-3193.diff
+
 %ifnarch %{no_scanner_archs}
 BuildRequires: sane-backends-devel >= 1.0.3-10
 BuildRequires: gphoto2-devel
@@ -259,6 +262,9 @@
 %patch1 -p1 -b .misc
 %patch2 -p1 -b .xorg
 
+# security fixes
+%patch100 -p0 -b .CAN-2005-3193
+
 %if %{rhel}
   echo "DO_NOT_COMPILE=\"\$DO_NOT_COMPILE kfax\"" >kfax/configure.in.in
   echo "DO_NOT_COMPILE=\"\$DO_NOT_COMPILE kfaxview\"" >kfaxview/configure.in.in
@@ -346,6 +352,9 @@
 %{_includedir}/kde/*
 
 %changelog
+* Mon Jan 16 2006 Than Ngo <than at redhat.com> 7:3.4.2-0.fc3.3
+- apply patch to fix CAN-2005-3193, #175107 
+
 * Thu Sep 15 2005 Than Ngo <than at redhat.com> 7:3.4.2-0.fc3.2 
 - add BuildRequires: libieee1284-devel #168356
 




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