CVE-2021-3716 – nbdkit: NBD_OPT_STRUCTURED_REPLY injection on STARTTLS

https://notcve.org/view.php?id=CVE-2021-3716

02 Feb 2022 — A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en nbdkit debido al almacenamiento inapropiado en caché del estado de texto plano a través del lí... • https://bugzilla.redhat.com/show_bug.cgi?id=1994695 • CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel •