5.3 Medium

CVE-2023-5871 Libnbd: malicious nbd server may crash libnbd

Description

A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.

CVSS 3.1 detail

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.

Attack vector: Network
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Affected products and versions

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 9	Versions not published
Red Hat Enterprise Linux 6	Versions not published
Red Hat Enterprise Linux 7	Versions not published
Red Hat Enterprise Linux 8	Versions not published

References

RHSA-2024:2204 access.redhat.com
access.redhat.com access.redhat.com
RHBZ#2247308 bugzilla.redhat.com
lists.libguestfs.org lists.libguestfs.org

Timeline

Published November 27, 2023
Last modified November 5, 2026

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