Hi!
Here is a patch I made (against 0.56.0) to cope with a broken pdf that
caused a crash. I hope it is equally useful for others.
Regards, Jan-Erik
diff -aur opoppler-0.56.0/poppler/StructTreeRoot.cc poppler-0.56.0/poppler/StructTreeRoot.cc
--- opoppler-0.56.0/poppler/StructTreeRoot.cc 2017-06-17 18:35:25.000000000 +0200
+++ poppler-0.56.0/poppler/StructTreeRoot.cc 2017-06-29 09:24:48.112333456 +0200
@@ -67,13 +67,13 @@
index.free();
continue;
}
- if (index.getInt() < 0) {
- error(errSyntaxError, -1, "Nums item at position {0:d} is invalid value ({1:d})", i, index.getInt());
+ const unsigned idx = index.getInt();
+ if (index.getInt() < 0 || idx >= parentTree.size()) {
+ error(errSyntaxError, -1, "Nums item at position {0:d} is invalid value ({1:d}): [0..{2:d}]", i, index.getInt(), parentTree.size() - 1);
index.free();
continue;
}
- const unsigned idx = index.getInt();
if (nums.arrayGetNF(i + 1, &value)->isRef()) {
parentTree[idx].resize(1);
parentTree[idx][0].ref = value.getRef();
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