Linux azure: A vulnerability was found
Affects Linux kernelSource GCVE Database
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
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 4.4 |
|---|
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.
Patches and advisories
- ubuntu.com/security/notices/USN-6681-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6688-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6705-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6716-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-5 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-raspi-realtimepkg:deb/ubuntu/linux-raspi-realtime?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSlinux-allwinner-5.19pkg:deb/ubuntu/linux-allwinner-5.19?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSlinux-aws-5.19pkg:deb/ubuntu/linux-aws-5.19?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-aws-6.2pkg:deb/ubuntu/linux-aws-6.2?arch=source&distro=jammyOther threats | Affected
| 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
- ubuntu.com/security/CVE-2024-0340 (opens in a new tab)
- git.kernel.org/linus/4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2024-0340 (opens in a new tab)
- lore.kernel.org/lkml/5kn47peabxjrptkqa6dwtyus35ahf4pcj4qm4pumse33kxqpjw@mec4se5relrc/T/ (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6688-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6681-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6705-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6716-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6686-5 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-0340 (opens in a new tab)