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[core,gcc] add monitor rect sanity checks

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akallabeth
2025-02-14 13:08:28 +01:00
parent 9d93ba10cd
commit 3b7c8042d8
1 changed files with 11 additions and 2 deletions
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13
libfreerdp/core/gcc.c
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@@ -2145,10 +2145,19 @@ BOOL gcc_read_client_monitor_data(wStream* s, rdpMcs* mcs)
const INT32 right = Stream_Get_INT32(s); /* right */
const INT32 bottom = Stream_Get_INT32(s); /* bottom */
const UINT32 flags = Stream_Get_UINT32(s); /* flags */
if ((left > right) || (bottom > top))
return FALSE;
const INT32 w = right - left;
const INT32 h = bottom - top;
if ((w >= INT32_MAX) || (h >= INT32_MAX))
return FALSE;
current->x = left;
current->y = top;
current->width = right - left + 1;
current->height = bottom - top + 1;
current->width = w + 1;
current->height = h + 1;
current->is_primary = (flags & MONITOR_PRIMARY) ? TRUE : FALSE;
}