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This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2024-0340 →
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Vulnerability in linux-azure

UBUNTU-CVE-2024-0340 First seen on SecPulse

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as UBUNTU-CVE-2024-0340 has been found in linux-azure.
Confidential information can be exposed externally.
What to do: upgrade linux-azure to 5.4.0-1120.130~18.04.1 or later.
If unsure, ask your IT team or search "linux-azure UBUNTU-CVE-2024-0340" on the vendor's site.

UBUNTU-CVE-2024-0340 (linux-azure)
Attack vector: local / no user interaction
Patched: 5.4.0-1120.130~18.04.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

What is the problem

A vulnerability (unclassified) exists in linux-azure.

Affected scope

Check the vendor advisory for the affected versions of linux-azure.

Severity

Severity: ?. Confidential information can be exposed externally.

How to fix

Update to 5.4.0-1120.130~18.04.1.

Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'linux-azure' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposureidentify
    grep -r 'linux-azure' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で linux-azure を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patchpatch
    Upgrade linux-azure to 5.4.0-1120.130~18.04.1

    ステージング環境で 5.4.0-1120.130~18.04.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verificationverify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

PackageAffected → Fixed
Ubuntu:Pro:14.04:LTSlinux-azure
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-aws-hwe
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-azure
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-gcp
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-hwe
All versions→ Not listed
Ubuntu:16.04:LTSlinux-hwe-edge
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-oracle
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-aws
All versions→ Not listed
Ubuntu:18.04:LTSlinux-aws-5.0
All versions→ Not listed
Ubuntu:18.04:LTSlinux-aws-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-aws-5.4
< 5.4.0-1120.130~18.04.1→ 5.4.0-1120.130~18.04.1
Ubuntu:18.04:LTSlinux-azure
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-azure-4.15
All versions→ Not listed
Ubuntu:18.04:LTSlinux-azure-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-azure-5.4
< 5.4.0-1126.133~18.04.1→ 5.4.0-1126.133~18.04.1
Ubuntu:18.04:LTSlinux-azure-edge
All versions→ Not listed
Ubuntu:18.04:LTSlinux-gcp
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-gcp-4.15
All versions→ Not listed
Ubuntu:18.04:LTSlinux-gcp-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-gcp-5.4
< 5.4.0-1124.133~18.04.1→ 5.4.0-1124.133~18.04.1
Ubuntu:18.04:LTSlinux-gke-4.15
All versions→ Not listed
Ubuntu:18.04:LTSlinux-gke-5.4
All versions→ Not listed
Ubuntu:18.04:LTSlinux-gkeop-5.4
All versions→ Not listed
Ubuntu:18.04:LTSlinux-hwe
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-hwe-5.4
< 5.4.0-173.191~18.04.1→ 5.4.0-173.191~18.04.1
Ubuntu:18.04:LTSlinux-hwe-edge
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-ibm-5.4
< 5.4.0-1067.72~18.04.1→ 5.4.0-1067.72~18.04.1
Ubuntu:Pro:18.04:LTSlinux-kvm
All versions→ Not listed
Ubuntu:18.04:LTSlinux-oem
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-oracle
All versions→ Not listed
Ubuntu:18.04:LTSlinux-oracle-5.0
All versions→ Not listed
Ubuntu:18.04:LTSlinux-oracle-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-oracle-5.4
< 5.4.0-1119.128~18.04.1→ 5.4.0-1119.128~18.04.1
Ubuntu:Pro:18.04:LTSlinux-raspi-5.4
< 5.4.0-1104.116~18.04.1→ 5.4.0-1104.116~18.04.1
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-azure-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-gcp-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:18.04:LTSlinux-aws-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:18.04:LTSlinux-azure-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:18.04:LTSlinux-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:18.04:LTSlinux-gcp-fips
All versions→ Not listed
Ubuntu:20.04:LTSlinux
< 5.4.0-173.191→ 5.4.0-173.191
Ubuntu:20.04:LTSlinux-aws
< 5.4.0-1120.130→ 5.4.0-1120.130
Ubuntu:20.04:LTSlinux-aws-5.15
< 5.15.0-1056.61~20.04.1→ 5.15.0-1056.61~20.04.1
Ubuntu:20.04:LTSlinux-azure
< 5.4.0-1126.133→ 5.4.0-1126.133
Ubuntu:20.04:LTSlinux-azure-5.15
< 5.15.0-1058.66~20.04.2→ 5.15.0-1058.66~20.04.2
Ubuntu:20.04:LTSlinux-bluefield
< 5.4.0-1080.87→ 5.4.0-1080.87
Ubuntu:20.04:LTSlinux-gcp
< 5.4.0-1124.133→ 5.4.0-1124.133
Ubuntu:20.04:LTSlinux-gcp-5.15
< 5.15.0-1053.61~20.04.1→ 5.15.0-1053.61~20.04.1
Ubuntu:20.04:LTSlinux-gkeop
< 5.4.0-1087.91→ 5.4.0-1087.91
Ubuntu:20.04:LTSlinux-gkeop-5.15
< 5.15.0-1038.44~20.04.1→ 5.15.0-1038.44~20.04.1
Ubuntu:20.04:LTSlinux-hwe-5.15
< 5.15.0-100.110~20.04.1→ 5.15.0-100.110~20.04.1
Ubuntu:20.04:LTSlinux-ibm
< 5.4.0-1067.72→ 5.4.0-1067.72
Ubuntu:20.04:LTSlinux-ibm-5.15
< 5.15.0-1048.51~20.04.1→ 5.15.0-1048.51~20.04.1
Ubuntu:20.04:LTSlinux-intel-iotg-5.15
< 5.15.0-1050.56~20.04.1→ 5.15.0-1050.56~20.04.1
Ubuntu:20.04:LTSlinux-iot
< 5.4.0-1032.33→ 5.4.0-1032.33
Ubuntu:20.04:LTSlinux-kvm
< 5.4.0-1108.115→ 5.4.0-1108.115
Ubuntu:20.04:LTSlinux-lowlatency-hwe-5.15
< 5.15.0-100.110~20.04.1→ 5.15.0-100.110~20.04.1
Ubuntu:20.04:LTSlinux-nvidia-tegra-5.15
< 5.15.0-1025.25~20.04.1→ 5.15.0-1025.25~20.04.1
Ubuntu:20.04:LTSlinux-oracle
< 5.4.0-1119.128→ 5.4.0-1119.128
Ubuntu:20.04:LTSlinux-oracle-5.15
< 5.15.0-1053.59~20.04.1→ 5.15.0-1053.59~20.04.1
Ubuntu:20.04:LTSlinux-raspi
< 5.4.0-1104.116→ 5.4.0-1104.116
Ubuntu:20.04:LTSlinux-riscv-5.15
< 5.15.0-1051.55~20.04.1→ 5.15.0-1051.55~20.04.1
Ubuntu:20.04:LTSlinux-xilinx-zynqmp
< 5.4.0-1039.43→ 5.4.0-1039.43
Ubuntu:20.04:LTSlinux-aws-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-aws-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-aws-5.8
All versions→ Not listed
Ubuntu:20.04:LTSlinux-azure-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-azure-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-azure-5.8
All versions→ Not listed
Ubuntu:20.04:LTSlinux-azure-fde
All versions→ Not listed
Ubuntu:20.04:LTSlinux-gcp-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-gcp-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-gcp-5.8
All versions→ Not listed
Ubuntu:20.04:LTSlinux-gke
All versions→ Not listed
Ubuntu:20.04:LTSlinux-gke-5.15
All versions→ Not listed
Ubuntu:20.04:LTSlinux-hwe-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-hwe-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-hwe-5.8
All versions→ Not listed
Ubuntu:20.04:LTSlinux-intel-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oem-5.10
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oem-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oem-5.14
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oem-5.6
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oracle-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oracle-5.13
All versions→ Not listed
Ubuntu:20.04:LTSlinux-oracle-5.8
All versions→ Not listed
Ubuntu:20.04:LTSlinux-raspi2
All versions→ Not listed
Ubuntu:20.04:LTSlinux-riscv
All versions→ Not listed
Ubuntu:20.04:LTSlinux-riscv-5.11
All versions→ Not listed
Ubuntu:20.04:LTSlinux-riscv-5.8
All versions→ Not listed
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-aws-fips
< 5.4.0-1120.130+fips1→ 5.4.0-1120.130+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-azure-fips
< 5.4.0-1126.133+fips1→ 5.4.0-1126.133+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-fips
< 5.4.0-1094.104→ 5.4.0-1094.104
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-gcp-fips
< 5.4.0-1124.133+fips1→ 5.4.0-1124.133+fips1
Ubuntu:Pro:FIPS:20.04:LTSlinux-aws-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:20.04:LTSlinux-azure-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:20.04:LTSlinux-fips
All versions→ Not listed
Ubuntu:Pro:FIPS:20.04:LTSlinux-gcp-fips
All versions→ Not listed
Ubuntu:22.04:LTSlinux
< 5.15.0-100.110→ 5.15.0-100.110
Ubuntu:22.04:LTSlinux-allwinner-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-aws
< 5.15.0-1056.61→ 5.15.0-1056.61
Ubuntu:22.04:LTSlinux-aws-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-aws-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure
< 5.15.0-1058.66→ 5.15.0-1058.66
Ubuntu:22.04:LTSlinux-azure-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure-fde
< 5.15.0-1058.66.1→ 5.15.0-1058.66.1
Ubuntu:22.04:LTSlinux-azure-fde-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure-fde-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-gcp
< 5.15.0-1053.61→ 5.15.0-1053.61
Ubuntu:22.04:LTSlinux-gcp-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-gcp-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-gke
< 5.15.0-1052.57→ 5.15.0-1052.57
Ubuntu:22.04:LTSlinux-gkeop
< 5.15.0-1038.44→ 5.15.0-1038.44
Ubuntu:22.04:LTSlinux-hwe-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-hwe-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-ibm
< 5.15.0-1048.51→ 5.15.0-1048.51
Ubuntu:22.04:LTSlinux-intel-iotg
< 5.15.0-1050.56→ 5.15.0-1050.56
Ubuntu:22.04:LTSlinux-kvm
< 5.15.0-1052.57→ 5.15.0-1052.57
Ubuntu:22.04:LTSlinux-lowlatency
< 5.15.0-100.110→ 5.15.0-100.110
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-nvidia
< 5.15.0-1046.46→ 5.15.0-1046.46
Ubuntu:22.04:LTSlinux-nvidia-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-nvidia-tegra
< 5.15.0-1025.25→ 5.15.0-1025.25
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx
< 5.15.0-1012.12→ 5.15.0-1012.12
Ubuntu:22.04:LTSlinux-oem-5.17
All versions→ Not listed
Ubuntu:22.04:LTSlinux-oem-6.0
All versions→ Not listed
Ubuntu:22.04:LTSlinux-oem-6.1
< 6.1.0-1035.35→ 6.1.0-1035.35
Ubuntu:22.04:LTSlinux-oracle
< 5.15.0-1053.59→ 5.15.0-1053.59
Ubuntu:22.04:LTSlinux-raspi
< 5.15.0-1048.51→ 5.15.0-1048.51
Ubuntu:22.04:LTSlinux-realtime
All versions→ Not listed
Ubuntu:22.04:LTSlinux-riscv
All versions→ Not listed
Ubuntu:22.04:LTSlinux-riscv-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-starfive-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-starfive-6.2
All versions→ Not listed
Ubuntu:22.04:LTSlinux-xilinx-zynqmp
< 5.15.0-1030.34→ 5.15.0-1030.34
Ubuntu:Nvidia-BlueField:22.04:LTSlinux-bluefield
< 5.15.0-1037.39→ 5.15.0-1037.39
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-aws-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-azure-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-gcp-fips
All versions→ Not listed
Ubuntu:Pro:FIPS-updates:22.04:LTSlinux-aws-fips
< 5.15.0-1056.61+fips1→ 5.15.0-1056.61+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTSlinux-fips
< 5.15.0-100.110+fips1→ 5.15.0-100.110+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTSlinux-gcp-fips
< 5.15.0-1055.63+fips2→ 5.15.0-1055.63+fips2
Ubuntu:Pro:Realtime:22.04:LTSlinux-intel-iot-realtime
< 5.15.0-1048.50→ 5.15.0-1048.50
Ubuntu:Pro:Realtime:22.04:LTSlinux-realtime
< 5.15.0-1056.63→ 5.15.0-1056.63
Ubuntu:24.04:LTSlinux-raspi-realtime
All versions→ Not listed
Ubuntu:26.04linux-nvidia
All versions→ Not listed
Ubuntu:Nvidia-BlueField:24.04:LTSlinux-bluefield
All versions→ Not listed
Ubuntu:26.04:LTSlinux-vmware
All versions→ Not listed
Original description The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

References

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