CVE-2024-0340

MEDIUM

Linux Kernel < 6.4 - Unauthorized Memory Read via vhost_new_msg

Title source: llm
STIX 2.1

Description

A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.

References (9)

Core 9
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3618
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3627
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:9315
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:7526
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2024-0340
Issue Tracking, Patch, Third Party Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2257406

Scores

CVSS v3 4.4
EPSS 0.0024
EPSS Percentile 14.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (2)
linux/linux_kernel 6.4 rc1 (5 CPE variants)
linux/linux_kernel < 6.4
Published Jan 09, 2024
Tracked Since Feb 18, 2026