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.

Classification

CVE ID: CVE-2024-0340

CVSS Base Severity: MEDIUM

CVSS Base Score: 4.4

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

Affected Products

Vendor: , Red Hat

Product: , Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.01% (probability of being exploited)

EPSS Percentile: 0.22% (scored less or equal to compared to others)

EPSS Date: 2025-06-12 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2024-0340
https://access.redhat.com/errata/RHSA-2024:3618
https://access.redhat.com/errata/RHSA-2024:3627
https://access.redhat.com/errata/RHSA-2024:9315
https://access.redhat.com/errata/RHSA-2025:7526
https://access.redhat.com/security/cve/CVE-2024-0340
https://bugzilla.redhat.com/show_bug.cgi?id=2257406
https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/

Timeline