The vulnerability of the _gcry_md_block_write function (cipher / hash-common.c) in the Libgcrypt cryptographic library allows a hacker to execute arbitrary code.

The vulnerability of the gcrymdblockwrite function from the cipher / hash-common.c file in the Libgcrypt cryptographic library relates to writing beyond the buffer boundaries. Exploiting this vulnerability could allow an attacker to execute arbitrary code...

UBUNTU-CVE-2021-3345

gcrymdblockwrite 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...