From 7f87dc10b6adccd6d1b977a28b064add254aa2da Mon Sep 17 00:00:00 2001 From: Adam Reichold Date: Thu, 27 Dec 2018 11:54:53 +0100 Subject: [PATCH] Do not try to construct invalid rich media annotation assets. Closes #703 --- poppler/Annot.cc | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/poppler/Annot.cc b/poppler/Annot.cc index 2e4770ab..1750dc70 100644 --- a/poppler/Annot.cc +++ b/poppler/Annot.cc @@ -6418,20 +6418,22 @@ AnnotRichMedia::Content::Content(Dict *dict) { if (obj1.isDict()) { Object obj2 = obj1.getDict()->lookup("Names"); if (obj2.isArray()) { - nAssets = obj2.arrayGetLength() / 2; + const int length = obj2.arrayGetLength() / 2; - assets = (Asset **)gmallocn(nAssets, sizeof(Asset *)); + assets = (Asset **)gmallocn(length, sizeof(Asset *)); + for (int i = 0; i < length; ++i) { + Object objKey = obj2.arrayGet(2 * i); + Object objVal = obj2.arrayGet(2 * i + 1); - int counter = 0; - for (int i = 0; i < nAssets; ++i) { - assets[counter] = new AnnotRichMedia::Asset; - - Object objKey = obj2.arrayGet(i * 2); - assets[counter]->fileSpec = obj2.arrayGet(i * 2 + 1); - - assets[counter]->name = new GooString( objKey.getString() ); - ++counter; + if (!objKey.isString() || objVal.isNull()) { + error(errSyntaxError, -1, "Bad Annot Asset"); + continue; + } + assets[nAssets] = new AnnotRichMedia::Asset; + assets[nAssets]->name = new GooString( objKey.getString() ); + assets[nAssets]->fileSpec = std::move(objVal); + ++nAssets; } } } -- 2.20.1