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pwn
libplist
Commits
b1be1e99
Commit
b1be1e99
authored
8 years ago
by
Nikias Bassen
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bplist: Make sure to detect integer overflow when handling unicode node size
Credit to OSS-Fuzz
parent
47d02dde
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bplist.c
src/bplist.c
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src/bplist.c
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b1be1e99
...
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@@ -668,6 +668,10 @@ static plist_t parse_bin_node(struct bplist_data *bplist, const char** object)
return
parse_string_node
(
object
,
size
);
case
BPLIST_UNICODE
:
if
(
size
*
2
<
size
)
{
PLIST_BIN_ERR
(
"%s: Integer overflow when calculating BPLIST_UNICODE data size.
\n
"
,
__func__
);
return
NULL
;
}
if
(
*
object
+
size
*
2
>
bplist
->
offset_table
)
{
PLIST_BIN_ERR
(
"%s: BPLIST_UNICODE data bytes point outside of valid range
\n
"
,
__func__
);
return
NULL
;
...
...
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