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authorCaolán McNamara <caolanm@redhat.com>2017-12-10 11:29:32 +0000
committerCaolán McNamara <caolanm@redhat.com>2017-12-10 16:25:19 +0100
commit0ecd8c5fe38b039fb15227a21938884f633c0c78 (patch)
tree25879633df52c6663595b427c9ed12bbb8d0d8b6 /starmath
parent01b64e5f5e3658810c7e66c6577705764ef7e288 (diff)
ofz#4570 depth protect mathtype parsing
Change-Id: I1d8ca1704c057e154aa1d3aa57d722c24609cc48 Reviewed-on: https://gerrit.libreoffice.org/46181 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
Diffstat (limited to 'starmath')
-rw-r--r--starmath/source/mathtype.cxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/starmath/source/mathtype.cxx b/starmath/source/mathtype.cxx
index 68e87a3db7de..c7016656a3e1 100644
--- a/starmath/source/mathtype.cxx
+++ b/starmath/source/mathtype.cxx
@@ -646,6 +646,10 @@ void MathType::HandleNudge()
bool MathType::HandleRecords(int nLevel, sal_uInt8 nSelector,
sal_uInt8 nVariation, int nMatrixRows, int nMatrixCols)
{
+ //depth-protect
+ if (nLevel > 2048)
+ return false;
+
sal_uInt8 nTag,nRecord;
sal_uInt8 nTabType,nTabStops;
sal_uInt16 nTabOffset;