6.2 Medium

CVE-2024-8235 Libvirt: crash of virtinterfaced via virconnectlistinterfaces()

Description

A flaw was found in libvirt. A refactor of the code fetching the list of interfaces for multiple APIs introduced a corner case on platforms where allocating 0 bytes of memory results in a NULL pointer. This corner case would lead to a NULL-pointer dereference and subsequent crash of virtinterfaced. This issue could allow clients connecting to the read-only socket to crash the virtinterfaced daemon.

CVSS 3.1 detail

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

Exploitable with local access to the machine, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

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

Affected products and versions

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 9	Versions not published
Red Hat Enterprise Linux 10	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
Red Hat Enterprise Linux 8 Advanced Virtualization	Versions not published

References

RHSA-2024:9128 access.redhat.com
access.redhat.com access.redhat.com
RHBZ#2308680 bugzilla.redhat.com
lists.libvirt.org lists.libvirt.org

Timeline

Published August 30, 2024
Last modified November 5, 2026

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