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

Modified

AliasesUBUNTU-CVE-2024-0340DEBIAN-CVE-2024-0340

Published 09-01-2024Last modified 29-10-2026

Vulnerability summary

CVE-2024-0340 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.4% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.24%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

09-01-2024
PublishedVulnerability first disclosed.
29-10-2026
Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

v3.15.5

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected systems

Version check

Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu105 products

linuxAll versions (No fix recorded) | < 5.4.0-173.191 | < 5.15.0-100.110
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded) | < 5.4.0-1120.130 | < 5.15.0-1056.61
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1056.61~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1120.130~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-fipsAll versions (No fix recorded) | < 5.4.0-1120.130+fips1 | < 5.15.0-1056.61+fips1
linux-aws-hweAll versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.4.0-1126.133 | < 5.15.0-1058.66
linux-azure-4.15All versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1058.66~20.04.2
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1126.133~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1058.66.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fipsAll versions (No fix recorded) | < 5.4.0-1126.133+fips1
linux-bluefield< 5.4.0-1080.87 | < 5.15.0-1037.39
linux-fipsAll versions (No fix recorded) | < 5.4.0-1094.104 | < 5.15.0-100.110+fips1
linux-gcpAll versions (No fix recorded) | < 5.4.0-1124.133 | < 5.15.0-1053.61
linux-gcp-4.15All versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1053.61~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1124.133~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded) | < 5.4.0-1124.133+fips1 | < 5.15.0-1055.63+fips2
linux-gkeAll versions (No fix recorded) | < 5.15.0-1052.57
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1087.91 | < 5.15.0-1038.44
linux-gkeop-5.15< 5.15.0-1038.44~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-100.110~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-173.191~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1067.72 | < 5.15.0-1048.51
linux-ibm-5.15< 5.15.0-1048.51~20.04.1
linux-ibm-5.4< 5.4.0-1067.72~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1048.50
linux-intel-iotg< 5.15.0-1050.56
linux-intel-iotg-5.15< 5.15.0-1050.56~20.04.1
linux-iot< 5.4.0-1032.33
linux-kvmAll versions (No fix recorded) | < 5.4.0-1108.115 | < 5.15.0-1052.57
linux-lowlatency< 5.15.0-100.110
linux-lowlatency-hwe-5.15< 5.15.0-100.110~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-nvidia< 5.15.0-1046.46
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-tegra< 5.15.0-1025.25
linux-nvidia-tegra-5.15< 5.15.0-1025.25~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1012.12
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1< 6.1.0-1035.35
linux-oracleAll versions (No fix recorded) | < 5.4.0-1119.128 | < 5.15.0-1053.59
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1053.59~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1119.128~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1104.116 | < 5.15.0-1048.51
linux-raspi-5.4< 5.4.0-1104.116~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1056.63
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1051.55~20.04.1
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1039.43 | < 5.15.0-1030.34

Show all 105

Debian1 product

linux< 6.1.82-1 | < 6.4.4-1

Linux1 product

linux_kernel< 6.4 | 6.4:rc1 | 6.4:rc2 | 6.4:rc3 | 6.4:rc4 | 6.4:rc5

3 vendors · 107 products

References

26 links

access.redhat.com/errata/RHSA-2024:3618Vendor AdvisoryX Refsource REDHAT
access.redhat.com/errata/RHSA-2024:3627Vendor AdvisoryX Refsource REDHAT
access.redhat.com/errata/RHSA-2024:9315Vendor AdvisoryX Refsource REDHAT
access.redhat.com/errata/RHSA-2025:7526Vendor AdvisoryX Refsource REDHAT
access.redhat.com/security/cve/CVE-2024-0340VDB EntryX Refsource REDHATREPORTThird Party Advisory
bugzilla.redhat.com/show_bug.cgi?id=2257406Issue TrackingX Refsource REDHATPatchThird Party Advisory
lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/REPORTMailing ListPatch
lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlX Transferred
lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlX Transferred
ubuntu.com/security/CVE-2024-0340REPORT

Show all 26 references

git.kernel.org/linus/4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9REPORT
ubuntu.com/security/notices/USN-6681-1Advisory
ubuntu.com/security/notices/USN-6686-1Advisory
ubuntu.com/security/notices/USN-6688-1Advisory
ubuntu.com/security/notices/USN-6681-2Advisory
ubuntu.com/security/notices/USN-6681-3Advisory
ubuntu.com/security/notices/USN-6686-2Advisory
ubuntu.com/security/notices/USN-6681-4Advisory
ubuntu.com/security/notices/USN-6686-3Advisory
ubuntu.com/security/notices/USN-6686-4Advisory
ubuntu.com/security/notices/USN-6705-1Advisory
ubuntu.com/security/notices/USN-6716-1Advisory
ubuntu.com/security/notices/USN-6686-5Advisory
www.cve.org/CVERecord?id=CVE-2024-0340REPORT
security-tracker.debian.org/tracker/CVE-2024-0340Advisory
nvd.nist.gov/vuln/detail/CVE-2024-0340OvalAdvisory