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libqt4
CVE-2018-15518.patch
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File CVE-2018-15518.patch of Package libqt4
Author: Allan Sandfeld Jensen <allan.jensen@qt.io> AuthorDate: 2018-08-13 15:29:16 +0200 Commit: Allan Sandfeld Jensen <allan.jensen@qt.io> CommitDate: 2018-08-13 15:10:11 +0000 Fix possible heap corruption in QXmlStream The value of 'tos' at the check might already be on the last element, so triggering stack expansion on the second last element is too late. Change-Id: Ib3ab2662d4d27a71effe9e988b9e172923af2908 Reviewed-by: Richard J. Moore <rich@kde.org> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> --- qt-everywhere-opensource-src-4.8.7.orig/src/corelib/xml/qxmlstream_p.h +++ qt-everywhere-opensource-src-4.8.7/src/corelib/xml/qxmlstream_p.h @@ -1242,7 +1242,7 @@ bool QXmlStreamReaderPrivate::parse() state_stack[tos] = 0; return true; } else if (act > 0) { - if (++tos == stack_size-1) + if (++tos >= stack_size-1) reallocateStack(); Value &val = sym_stack[tos];
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