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Fix CVE-2018-10756:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10756
Patch copied from Fedora:
https://src.fedoraproject.org/rpms/transmission/blob/master/f/2123adf8e5e1c2b48791f9d22fc8c747e974180e.patch
--- a/libtransmission/variant.c 2018-05-01 12:21:08.000000000 -0500
+++ b/libtransmission/variant.c 2020-05-18 10:21:27.554214128 -0500
@@ -820,7 +820,7 @@
struct SaveNode
{
const tr_variant * v;
- tr_variant sorted;
+ tr_variant* sorted;
size_t childIndex;
bool isVisited;
};
@@ -849,26 +849,33 @@
qsort (tmp, n, sizeof (struct KeyIndex), compareKeyIndex);
- tr_variantInitDict (&node->sorted, n);
+ node->sorted = tr_new(tr_variant, 1);
+ tr_variantInitDict (node->sorted, n);
for (i=0; i<n; ++i)
- node->sorted.val.l.vals[i] = *tmp[i].val;
+ node->sorted->val.l.vals[i] = *tmp[i].val;
node->sorted.val.l.count = n;
tr_free (tmp);
- node->v = &node->sorted;
+ v = node->sorted;
}
else
{
- node->v = v;
+ node->sorted = NULL;
}
+
+ node->v = v;
}
static void
nodeDestruct (struct SaveNode * node)
{
- if (node->v == &node->sorted)
- tr_free (node->sorted.val.l.vals);
+ //TR_ASSERT(node != NULL);
+ if (node->sorted != NULL)
+ {
+ tr_free(node->sorted->val.l.vals);
+ tr_free(node->sorted);
+ }
}
/**
--- a/libtransmission/variant.c 2020-05-18 10:21:49.000000000 -0500
+++ b/libtransmission/variant.c 2020-05-18 10:24:34.673648865 -0500
@@ -853,7 +853,7 @@
tr_variantInitDict (node->sorted, n);
for (i=0; i<n; ++i)
node->sorted->val.l.vals[i] = *tmp[i].val;
- node->sorted.val.l.count = n;
+ node->sorted->val.l.count = n;
tr_free (tmp);
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