Fix for bug #114428

(Portage version: 2.0.53_rc7)

2 files changed, 124 insertions, 0 deletions

diff --git a/app-text/poppler/files/digest-poppler-0.4.2-r1 b/app-text/poppler/files/digest-poppler-0.4.2-r1
new file mode 100644
index 000000000000..2c60c15e4850
--- /dev/null
+++ b/app-text/poppler/files/digest-poppler-0.4.2-r1
@@ -0,0 +1 @@
+MD5 beb1eea135a3c5b679a7a22d01a500c0 poppler-0.4.2.tar.gz 777935
diff --git a/app-text/poppler/files/poppler-0.4.2-CAN-2005-3193.patch b/app-text/poppler/files/poppler-0.4.2-CAN-2005-3193.patch
new file mode 100644
index 000000000000..6775f081766f
--- /dev/null
+++ b/app-text/poppler/files/poppler-0.4.2-CAN-2005-3193.patch
@@ -0,0 +1,123 @@
+diff --exclude-from=/home/dang/.diffrc -u -ruN poppler-0.4.2.orig/poppler/JPXStream.cc poppler-0.4.2/poppler/JPXStream.cc
+--- poppler-0.4.2.orig/poppler/JPXStream.cc	2005-03-03 14:46:03.000000000 -0500
++++ poppler-0.4.2/poppler/JPXStream.cc	2005-12-04 13:30:39.000000000 -0500
+@@ -666,7 +666,7 @@
+   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 +701,13 @@
+ 	            / 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;
++      // check for overflow before allocating memory
++      if (nTiles == 0 || nTiles / img.nXTiles != img.nYTiles) {
++	error(getPos(), "Bad tile count in JPX SIZ marker segment");
++	return gFalse;
++      }
++      img.tiles = (JPXTile *)gmalloc(nTiles * sizeof(JPXTile));
+       for (i = 0; i < img.nXTiles * img.nYTiles; ++i) {
+ 	img.tiles[i].tileComps = (JPXTileComp *)gmalloc(img.nComps *
+ 							sizeof(JPXTileComp));
+diff --exclude-from=/home/dang/.diffrc -u -ruN poppler-0.4.2.orig/poppler/Stream.cc poppler-0.4.2/poppler/Stream.cc
+--- poppler-0.4.2.orig/poppler/Stream.cc	2005-04-27 16:56:18.000000000 -0400
++++ poppler-0.4.2/poppler/Stream.cc	2005-12-04 13:22:20.000000000 -0500
+@@ -415,18 +415,33 @@
+ 
+ StreamPredictor::StreamPredictor(Stream *strA, int predictorA,
+ 				 int widthA, int nCompsA, int nBitsA) {
++  int totalBits;
++
+   str = strA;
+   predictor = predictorA;
+   width = widthA;
+   nComps = nCompsA;
+   nBits = nBitsA;
++  predLine = NULL;
++  ok = gFalse;
+ 
+   nVals = width * nComps;
++  totalBits = nVals * nBits;
++  if (totalBits == 0 ||
++      (totalBits / nBits) / nComps != width ||
++      totalBits + 7 < 0) {
++    return;
++  }
+   pixBytes = (nComps * nBits + 7) >> 3;
+-  rowBytes = ((nVals * nBits + 7) >> 3) + pixBytes;
++  rowBytes = ((totalBits + 7) >> 3) + pixBytes;
++  if (rowBytes < 0) {
++    return;
++  }
+   predLine = (Guchar *)gmalloc(rowBytes);
+   memset(predLine, 0, rowBytes);
+   predIdx = rowBytes;
++
++  ok = gTrue;
+ }
+ 
+ StreamPredictor::~StreamPredictor() {
+@@ -1020,6 +1035,10 @@
+     FilterStream(strA) {
+   if (predictor != 1) {
+     pred = new StreamPredictor(this, predictor, columns, colors, bits);
++    if (!pred->isOk()) {
++      delete pred;
++      pred = NULL;
++    }
+   } else {
+     pred = NULL;
+   }
+@@ -2907,6 +2926,14 @@
+   height = read16();
+   width = read16();
+   numComps = str->getChar();
++  if (numComps <= 0 || numComps > 4) {
++    error(getPos(), "Bad number of components in DCT stream", prec);
++    return gFalse;
++  }
++  if (numComps <= 0 || numComps > 4) {
++    error(getPos(), "Bad number of components in DCT stream", prec);
++    return gFalse;
++  }
+   if (prec != 8) {
+     error(getPos(), "Bad DCT precision %d", prec);
+     return gFalse;
+@@ -3268,6 +3295,10 @@
+     FilterStream(strA) {
+   if (predictor != 1) {
+     pred = new StreamPredictor(this, predictor, columns, colors, bits);
++    if (!pred->isOk()) {
++      delete pred;
++      pred = NULL;
++    }
+   } else {
+     pred = NULL;
+   }
+diff --exclude-from=/home/dang/.diffrc -u -ruN poppler-0.4.2.orig/poppler/Stream.h poppler-0.4.2/poppler/Stream.h
+--- poppler-0.4.2.orig/poppler/Stream.h	2005-04-27 16:56:18.000000000 -0400
++++ poppler-0.4.2/poppler/Stream.h	2005-12-04 13:22:20.000000000 -0500
+@@ -231,6 +231,8 @@
+ 
+   ~StreamPredictor();
+ 
++  GBool isOk() { return ok; }
++
+   int lookChar();
+   int getChar();
+ 
+@@ -248,6 +250,7 @@
+   int rowBytes;			// bytes per line
+   Guchar *predLine;		// line buffer
+   int predIdx;			// current index in predLine
++  GBool ok;
+ };
+ 
+ //------------------------------------------------------------------------