CVE-2024-0340 Kernel: information disclosure in vhost/vhost.c:vhost_new_msg()

What is CVE-2024-0340?

CVE-2024-0340 is a medium-severity vulnerability in Linux kernel, published on 9 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-200

Which versions are affected by CVE-2024-0340?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-0340?

Apply the vendor's patch.

Is CVE-2024-0340 being exploited?

There is no known exploitation of CVE-2024-0340 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-33319, BELL-CVE-2024-0340, DEBIAN-CVE-2024-0340, GHSA-59h3-54m2-3jm7, UBUNTU-CVE-2024-0340.