WhiteSource Vulnerability Database
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Date: January 24, 2020
libp2p-deflate crate before 0.27.1 passes an uninitialized buffer to a user-provided trait function 'AsyncRead::poll_read()'. Arbitrary 'AsyncRead::poll_read()' implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.