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datetime: fix potential out-of-bound read on malformed datetime string

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=777263
This commit is contained in:
Tim-Philipp Müller 2017-01-15 11:52:44 +00:00
parent 67e9f15944
commit 9398b7f1a7
2 changed files with 9 additions and 1 deletions
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2
gst/gstdatetime.c
View file

@ -865,7 +865,7 @@ gst_date_time_new_from_iso8601_string (const gchar * string)
else if (neg_pos)
pos = neg_pos + 1;
if (pos) {
if (pos && strlen (pos) >= 3) {
gint ret_tz;
if (pos[2] == ':')
ret_tz = sscanf (pos, "%d:%d", &gmt_offset_hour, &gmt_offset_min);

8
tests/check/gst/gstdatetime.c
View file

@ -701,6 +701,14 @@ GST_START_TEST (test_GstDateTime_iso8601)
fail_unless (!gst_date_time_has_second (dt));
gst_date_time_unref (dt);
/* some bogus ones, make copy to detect out of bound read in valgrind/asan */
{
gchar *s = g_strdup ("0002000000T00000:00+0");
dt = gst_date_time_new_from_iso8601_string (s);
gst_date_time_unref (dt);
g_free (s);
}
g_date_time_unref (gdt2);
}