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Abort order read on invalid element count.

This commit is contained in:
akallabeth 2020-04-06 15:08:25 +02:00 committed by akallabeth
parent acc6023643
commit 232c7f4783
1 changed files with 10 additions and 1 deletions
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11
libfreerdp/core/orders.c
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@ -1444,6 +1444,9 @@ static BOOL update_read_polyline_order(wStream* s, const ORDER_INFO* orderInfo,
{
DELTA_POINT* new_points;
if (new_num == 0)
return FALSE;
if (Stream_GetRemainingLength(s) < 1)
{
WLog_ERR(TAG, "Stream_GetRemainingLength(s) < 1");
@ -1739,7 +1742,7 @@ static BOOL update_read_fast_glyph_order(wStream* s, const ORDER_INFO* orderInfo
if (fastGlyph->cbData < new_cb)
return FALSE;
if (new_cb)
if (new_cb > 0)
{
BYTE* new_aj;
new_aj = (BYTE*)realloc(glyph->aj, new_cb);
@ -1772,6 +1775,9 @@ static BOOL update_read_polygon_sc_order(wStream* s, const ORDER_INFO* orderInfo
{
DELTA_POINT* newpoints;
if (num == 0)
return FALSE;
if (Stream_GetRemainingLength(s) < 1)
return FALSE;
@ -1809,6 +1815,9 @@ static BOOL update_read_polygon_cb_order(wStream* s, const ORDER_INFO* orderInfo
{
DELTA_POINT* newpoints;
if (num == 0)
return FALSE;
if (Stream_GetRemainingLength(s) < 1)
return FALSE;