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19 lines
576 B
19 lines
576 B
6 years ago
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diff -Nur p7zip/CPP/7zip/Compress/ShrinkDecoder.cpp CVE-2017-17969_mod/CPP/7zip/Compress/ShrinkDecoder.cpp
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--- p7zip/CPP/7zip/Compress/ShrinkDecoder.cpp 2016-05-19 01:31:02.000000000 +0800
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+++ CVE-2017-17969_mod/CPP/7zip/Compress/ShrinkDecoder.cpp 2019-03-06 22:04:10.675224841 +0800
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@@ -121,8 +121,13 @@
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{
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_stack[i++] = _suffixes[cur];
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cur = _parents[cur];
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+ if (cur >= kNumItems || i >= kNumItems)
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+ break;
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}
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-
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+
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+ if (cur >= kNumItems || i >= kNumItems)
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+ break;
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+
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_stack[i++] = (Byte)cur;
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lastChar2 = (Byte)cur;
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