Heap-based Buffer Overflow in _gcry_md_block_write in Libgcrypt 1.9.0

Heap-based Buffer Overflow in _gcry_md_block_write in Libgcrypt 1.9.0

CVE-2021-3345 · HIGH Severity

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

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