Information disclosure in Linux Kernel
CVE-2024-0340
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Linux Kernel — versions 6.4
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-553.5.1.rt7.346.el8_10, 0:4.18.0-553.5.1.el8_10
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-503.11.1.el9_5
- Red Hat Enterprise Linux 9.4 Extended Update Support — versions 0:5.14.0-427.68.1.el9_4
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2024:3618 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3627 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:9315 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:7526 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-0340 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5… (Patch, Mailing List)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-0340?
- CVE-2024-0340 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 4.4/10. Published 2024-01-09.
- How severe is CVE-2024-0340?
- Medium severity. CVSS v3 base score is 4.4 out of 10.