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Code Issues Releases Wiki Activity

Check for overflow in page labels (fuzz issue 23599)

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This commit is contained in:
Jay Berkenbilt 2020-10-22 05:45:01 -04:00
parent 7f4a4df919
commit c1684eae91
3 changed files with 1 additions and 1 deletions
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1
TODO
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@ -65,7 +65,6 @@ Fuzz Errors
* https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=<N> * https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=<N>
* New: * New:
* 23599: integer overflow: https://oss-fuzz.com/testcase?key=6290807920525312
* 23642: leak: https://oss-fuzz.com/testcase-detail/4906569690251264 * 23642: leak: https://oss-fuzz.com/testcase-detail/4906569690251264
* Ignoring these: * Ignoring these:

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fuzz/qpdf_extra/23599.fuzz Normal file
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1
libqpdf/QPDFPageLabelDocumentHelper.cc
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@ -53,6 +53,7 @@ QPDFPageLabelDocumentHelper::getLabelForPage(long long page_idx)
{ {
start = St.getIntValue(); start = St.getIntValue();
} }
QIntC::range_check(start, offset);
start += offset; start += offset;
result = QPDFObjectHandle::newDictionary(); result = QPDFObjectHandle::newDictionary();
result.replaceOrRemoveKey("/S", S); result.replaceOrRemoveKey("/S", S);