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CVE-2024-0340VulnerabilityPublished Updated

Linux azure: A vulnerability was found

Affects Linux kernelSource GCVE Database

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Authoritative record:CVE-2024-0340· Medium 4.4

Not known to be exploited · CVSS 4.4 Medium · fixed in 5.4.0-1120.130~18.04.1 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 15:35 UTC

CVSS 3.1 base score
4.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.14.4
Patch
Available – fixed in 5.4.0-1120.130~18.04.1, 5.4.0-1126.133~18.04.1, 5.4.0-1124.133~18.04.1 +51
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Jan 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinux-raspi-realtimepkg:deb/ubuntu/linux-raspi-realtime?arch=source&distro=nobleOther threatsAffected
  • =6.8.0-2019.20
Fixed in–
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-100.110
Fixed in
  • 5.15.0-100.110
Ubuntu 22.04 LTSlinux-allwinner-5.19pkg:deb/ubuntu/linux-allwinner-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1007.7~22.04.1 – 5.19.0-1015.15~22.04.1
8 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1056.61
Fixed in
  • 5.15.0-1056.61
Ubuntu 22.04 LTSlinux-aws-5.19pkg:deb/ubuntu/linux-aws-5.19?arch=source&distro=jammyOther threatsAffected
  • 5.19.0-1019.20~22.04.1 – 5.19.0-1029.30~22.04.1
10 affected builds
Fixed in–
Ubuntu 22.04 LTSlinux-aws-6.2pkg:deb/ubuntu/linux-aws-6.2?arch=source&distro=jammyOther threatsAffected
  • 6.2.0-1005.5~22.04.1 – 6.2.0-1018.18~22.04.1
14 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and has been released in multiple linux-azure kernel versions including 5.4.0-1120.130~18.04.1 and later. Users should upgrade to these fixed versions to remediate the vulnerability. No additional mitigation is required once patched.

Description

A vulnerability in the Linux kernel's vhost_new_msg function in drivers/vhost/vhost.c allows local privileged users to read uninitialized kernel memory via the /dev/vhost-net device. This issue affects certain versions of the linux-azure kernel and has a medium severity rating with a CVSS score of 5.5. Fixed versions are available.

References

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