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home:dirkmueller:acdc:as_python3_module
poppler-qt5.29065
CVE-2019-7310.patch
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File CVE-2019-7310.patch of Package poppler-qt5.29065
From b54e1fc3e0d2600621a28d50f9f085b9e38619c2 Mon Sep 17 00:00:00 2001 From: Adam Reichold <adam.reichold@t-online.de> Date: Fri, 1 Feb 2019 08:42:27 +0100 Subject: [PATCH] Also defend against requests for negative XRef indices. oss-fuzz/12797 --- poppler/XRef.cc | 5 +++++ 1 file changed, 5 insertions(+) Index: poppler-0.62.0/poppler/XRef.cc =================================================================== --- poppler-0.62.0.orig/poppler/XRef.cc 2021-11-23 08:21:42.756715591 +0100 +++ poppler-0.62.0/poppler/XRef.cc 2021-11-23 08:21:42.828714200 +0100 @@ -1618,6 +1618,11 @@ DummyXRefEntry dummyXRefEntry; XRefEntry *XRef::getEntry(int i, GBool complainIfMissing) { + if (unlikely(i < 0)) { + error(errInternal, -1, "Request for invalid XRef entry [{0:d}]", i); + return &dummyXRefEntry; + } + if (i >= size || entries[i].type == xrefEntryNone) { if ((!xRefStream) && mainXRefEntriesOffset) {
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