{"id":"CVE-2024-0340","title":"Kernel: information disclosure in vhost/vhost.c:vhost_new_msg()","summary":"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…","severity":"medium","cvss":4.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-200"],"vendor":"Red Hat","product":"kernel","affected":["kernel < 6.4-rc6","kernel-rt (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel (all versions)","kernel-rt (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-01-09T19:24:12.513121Z"},"published":"2024-01-09","updated":"2026-10-29","sourceUpdated":"2026-10-29T07:23:10.649Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-0340","references":[{"url":"https://access.redhat.com/errata/RHSA-2024:3618","label":"RHSA-2024:3618"},{"url":"https://access.redhat.com/errata/RHSA-2024:3627","label":"RHSA-2024:3627"},{"url":"https://access.redhat.com/errata/RHSA-2024:9315","label":"RHSA-2024:9315"},{"url":"https://access.redhat.com/errata/RHSA-2025:7526","label":"RHSA-2025:7526"},{"url":"https://access.redhat.com/security/cve/CVE-2024-0340"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2257406","label":"RHBZ#2257406"},{"url":"https://lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/"}],"tags":["cve.org"],"epss":0.00235,"epssPercentile":0.14435,"ingestedAt":"2026-10-31T04:17:25.422Z","slug":"CVE-2024-0340","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `kernel < 6.4-rc6`\n- `kernel-rt (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel (all versions)`\n- `kernel-rt (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}