| Description |
Hiredis before version 1.0.1 is vulnurable to integer overflow if provided maliciously crafted or corrupted RESP mult-bulk protocol data.
When parsing multi-bulk (array-like) replies, hiredis fails to check if count * sizeof(redisReply*) can be represented in SIZE_MAX. If it can not, and the calloc() call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow.
Users of hiredis who are unable to update may set the maxelements context option to a value small enough that no overflow is possible. |