Improper Enforcement of Message Integrity During Transmission in a Communication Channel Affecting libvirt-daemon-driver-storage-iscsi package, versions <0:8.0.0-5.module+el8.6.0+14480+c0a3aa0f


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.1% (45th percentile)

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  • Snyk IDSNYK-CENTOS8-LIBVIRTDAEMONDRIVERSTORAGEISCSI-2820826
  • published18 Aug 2021
  • disclosed16 Aug 2021

Introduced: 16 Aug 2021

CVE-2021-3716  (opens in a new tab)
CWE-924  (opens in a new tab)

How to fix?

Upgrade Centos:8 libvirt-daemon-driver-storage-iscsi to version 0:8.0.0-5.module+el8.6.0+14480+c0a3aa0f or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-storage-iscsi package and not the libvirt-daemon-driver-storage-iscsi package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1