This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2021-3716 →
DEBIAN-CVE-2021-3716
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 t...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
nbdkit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1"}]}]
Debian:13
nbdkit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1"}]}]
Debian:14
nbdkit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.5-1"}]}]
References
- advisory security-tracker.debian.org