forked from osmocom/wireshark
epan: Add a boundary check to get_t61_string.
Add a boundary check to make sure we don't go past the end of "ptr". Bug: 15373 Change-Id: I85394e8e6e477b47919362af146051cc8911254b Reviewed-on: https://code.wireshark.org/review/31437 Petri-Dish: Gerald Combs <gerald@wireshark.org> Tested-by: Petri Dish Buildbot Reviewed-by: Gerald Combs <gerald@wireshark.org>
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@ -1430,7 +1430,7 @@ get_t61_string(wmem_allocator_t *scope, const guint8 *ptr, gint length)
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for (i = 0, c = ptr; i < length; c++, i++) {
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if (!t61_tab[*c]) {
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wmem_strbuf_append_unichar(strbuf, UNREPL);
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} else if ((*c & 0xf0) == 0xc0) {
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} else if (i < length - 1 && (*c & 0xf0) == 0xc0) {
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gint j = *c & 0x0f;
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/* If this is the end of the string, or if the base
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* character is just a space, treat this as a regular
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