Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2021-3716

Improper Enforcement of Message Integrity During Transmission in a Communication Channel

Published: Mar 02, 2022 | Modified: Nov 21, 2024
CVSS 3.x
3.1
LOW
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 2.x
3.5 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P
RedHat/V2
RedHat/V3
3.5 LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-3716
CWEhttps://cwe.mitre.org/data/definitions/924.html

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.

Weakness

The product establishes a communication channel with an endpoint and receives a message from that endpoint, but it does not sufficiently ensure that the message was not modified during transmission.

Affected Software

NameVendorStart VersionEnd Version
NbdkitNbdkit_project1.11.8 (including)1.24.6 (excluding)
NbdkitNbdkit_project1.25.1 (including)1.26.5 (excluding)
NbdkitNbdkit_project1.27.1 (including)1.27.6 (excluding)
Advanced Virtualization for RHEL 8.5.0.ZRedHatvirt:av-8050020220115095224.c5368500*
Advanced Virtualization for RHEL 8.5.0.ZRedHatvirt-devel:av-8050020220115095224.c5368500*
Red Hat Enterprise Linux 8RedHatvirt-devel:rhel-8060020220408104655.d63f516d*
Red Hat Enterprise Linux 8RedHatvirt:rhel-8060020220408104655.d63f516d*
NbdkitUbuntufocal*
NbdkitUbuntuhirsute*
NbdkitUbuntuimpish*
NbdkitUbuntukinetic*
NbdkitUbuntulunar*
NbdkitUbuntumantic*
NbdkitUbuntuoracular*
NbdkitUbuntuplucky*
NbdkitUbuntutrusty*
NbdkitUbuntuxenial*

References

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