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This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2023-4132 →
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Vulnerability in linux-azure

UBUNTU-CVE-2023-4132 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-2023-4132 has been found in linux-azure.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux-azure to 4.15.0-1175.190~14.04.1 or later.
If unsure, ask your IT team or search "linux-azure UBUNTU-CVE-2023-4132" on the vendor's site.

UBUNTU-CVE-2023-4132 (linux-azure)
Attack vector: local / no user interaction
Patched: 4.15.0-1175.190~14.04.1 — 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: ?. Risk of unauthorized operations or information disclosure.

How to fix

Update to 4.15.0-1175.190~14.04.1.

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 4.15.0-1175.190~14.04.1

    ステージング環境で 4.15.0-1175.190~14.04.1 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
< 4.15.0-1175.190~14.04.1→ 4.15.0-1175.190~14.04.1
Ubuntu:Pro:16.04:LTSlinux-aws-hwe
< 4.15.0-1166.179~16.04.1→ 4.15.0-1166.179~16.04.1
Ubuntu:Pro:16.04:LTSlinux-azure
< 4.15.0-1175.190~16.04.1→ 4.15.0-1175.190~16.04.1
Ubuntu:Pro:16.04:LTSlinux-gcp
< 4.15.0-1160.177~16.04.1→ 4.15.0-1160.177~16.04.1
Ubuntu:Pro:16.04:LTSlinux-hwe
< 4.15.0-223.235~16.04.1→ 4.15.0-223.235~16.04.1
Ubuntu:16.04:LTSlinux-hwe-edge
All versions→ Not listed
Ubuntu:Pro:16.04:LTSlinux-oracle
< 4.15.0-1129.140~16.04.1→ 4.15.0-1129.140~16.04.1
Ubuntu:Pro:18.04:LTSlinux
< 4.15.0-223.235→ 4.15.0-223.235
Ubuntu:Pro:18.04:LTSlinux-aws
< 4.15.0-1166.179→ 4.15.0-1166.179
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
< 5.4.0-1113.123~18.04.1→ 5.4.0-1113.123~18.04.1
Ubuntu:18.04:LTSlinux-azure
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-azure-4.15
< 4.15.0-1175.190→ 4.15.0-1175.190
Ubuntu:18.04:LTSlinux-azure-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-azure-5.4
< 5.4.0-1119.126~18.04.2→ 5.4.0-1119.126~18.04.2
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
< 4.15.0-1160.177→ 4.15.0-1160.177
Ubuntu:18.04:LTSlinux-gcp-5.3
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-gcp-5.4
< 5.4.0-1117.126~18.04.1→ 5.4.0-1117.126~18.04.1
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
< 5.4.0-166.183~18.04.2→ 5.4.0-166.183~18.04.2
Ubuntu:18.04:LTSlinux-hwe-edge
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-ibm-5.4
< 5.4.0-1060.65~18.04.1→ 5.4.0-1060.65~18.04.1
Ubuntu:Pro:18.04:LTSlinux-kvm
< 4.15.0-1150.155→ 4.15.0-1150.155
Ubuntu:18.04:LTSlinux-oem
All versions→ Not listed
Ubuntu:Pro:18.04:LTSlinux-oracle
< 4.15.0-1129.140→ 4.15.0-1129.140
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
< 5.4.0-1112.121~18.04.4→ 5.4.0-1112.121~18.04.4
Ubuntu:Pro:18.04:LTSlinux-raspi-5.4
< 5.4.0-1097.109~18.04.2→ 5.4.0-1097.109~18.04.2
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips
< 4.15.0-2105.111→ 4.15.0-2105.111
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-azure-fips
< 4.15.0-2084.90→ 4.15.0-2084.90
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-fips
< 4.15.0-1121.132→ 4.15.0-1121.132
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-gcp-fips
< 4.15.0-2068.73→ 4.15.0-2068.73
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
< 5.4.0-166.183→ 5.4.0-166.183
Ubuntu:20.04:LTSlinux-aws
< 5.4.0-1113.123→ 5.4.0-1113.123
Ubuntu:20.04:LTSlinux-aws-5.15
< 5.15.0-1047.52~20.04.1→ 5.15.0-1047.52~20.04.1
Ubuntu:20.04:LTSlinux-azure
< 5.4.0-1119.126→ 5.4.0-1119.126
Ubuntu:20.04:LTSlinux-azure-5.15
< 5.15.0-1049.56~20.04.1→ 5.15.0-1049.56~20.04.1
Ubuntu:20.04:LTSlinux-bluefield
< 5.4.0-1074.80→ 5.4.0-1074.80
Ubuntu:20.04:LTSlinux-gcp
< 5.4.0-1117.126→ 5.4.0-1117.126
Ubuntu:20.04:LTSlinux-gcp-5.15
< 5.15.0-1044.52~20.04.1→ 5.15.0-1044.52~20.04.1
Ubuntu:20.04:LTSlinux-gkeop
< 5.4.0-1080.84→ 5.4.0-1080.84
Ubuntu:20.04:LTSlinux-gkeop-5.15
< 5.15.0-1030.35~20.04.1→ 5.15.0-1030.35~20.04.1
Ubuntu:20.04:LTSlinux-hwe-5.15
< 5.15.0-86.96~20.04.1→ 5.15.0-86.96~20.04.1
Ubuntu:20.04:LTSlinux-ibm
< 5.4.0-1060.65→ 5.4.0-1060.65
Ubuntu:20.04:LTSlinux-ibm-5.15
< 5.15.0-1040.43~20.04.1→ 5.15.0-1040.43~20.04.1
Ubuntu:20.04:LTSlinux-intel-iotg-5.15
< 5.15.0-1043.49~20.04.1→ 5.15.0-1043.49~20.04.1
Ubuntu:20.04:LTSlinux-iot
< 5.4.0-1025.26→ 5.4.0-1025.26
Ubuntu:20.04:LTSlinux-kvm
< 5.4.0-1102.108→ 5.4.0-1102.108
Ubuntu:20.04:LTSlinux-lowlatency-hwe-5.15
< 5.15.0-86.95~20.04.1→ 5.15.0-86.95~20.04.1
Ubuntu:20.04:LTSlinux-nvidia-tegra-5.15
< 5.15.0-1018.18~20.04.1→ 5.15.0-1018.18~20.04.1
Ubuntu:20.04:LTSlinux-oracle
< 5.4.0-1112.121→ 5.4.0-1112.121
Ubuntu:20.04:LTSlinux-oracle-5.15
< 5.15.0-1045.51~20.04.1→ 5.15.0-1045.51~20.04.1
Ubuntu:20.04:LTSlinux-raspi
< 5.4.0-1097.109→ 5.4.0-1097.109
Ubuntu:20.04:LTSlinux-riscv-5.15
< 5.15.0-1043.47~20.04.1→ 5.15.0-1043.47~20.04.1
Ubuntu:20.04:LTSlinux-xilinx-zynqmp
< 5.4.0-1033.37→ 5.4.0-1033.37
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
< 5.4.0-1113.123+fips1→ 5.4.0-1113.123+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-azure-fips
< 5.4.0-1119.126+fips1→ 5.4.0-1119.126+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-fips
< 5.4.0-1088.97→ 5.4.0-1088.97
Ubuntu:Pro:FIPS-updates:20.04:LTSlinux-gcp-fips
< 5.4.0-1117.126+fips1→ 5.4.0-1117.126+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
< 5.15.0-86.96→ 5.15.0-86.96
Ubuntu:22.04:LTSlinux-allwinner-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-aws
< 5.15.0-1047.52→ 5.15.0-1047.52
Ubuntu:22.04:LTSlinux-aws-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-aws-6.2
< 6.2.0-1015.15~22.04.1→ 6.2.0-1015.15~22.04.1
Ubuntu:22.04:LTSlinux-azure
< 5.15.0-1049.56→ 5.15.0-1049.56
Ubuntu:22.04:LTSlinux-azure-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure-6.2
< 6.2.0-1016.16~22.04.1→ 6.2.0-1016.16~22.04.1
Ubuntu:22.04:LTSlinux-azure-fde
< 5.15.0-1049.56.1→ 5.15.0-1049.56.1
Ubuntu:22.04:LTSlinux-azure-fde-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-azure-fde-6.2
< 6.2.0-1016.16~22.04.1.1→ 6.2.0-1016.16~22.04.1.1
Ubuntu:22.04:LTSlinux-gcp
< 5.15.0-1044.52→ 5.15.0-1044.52
Ubuntu:22.04:LTSlinux-gcp-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-gcp-6.2
< 6.2.0-1018.20~22.04.1→ 6.2.0-1018.20~22.04.1
Ubuntu:22.04:LTSlinux-gke
< 5.15.0-1044.49→ 5.15.0-1044.49
Ubuntu:22.04:LTSlinux-gkeop
< 5.15.0-1030.35→ 5.15.0-1030.35
Ubuntu:22.04:LTSlinux-hwe-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-hwe-6.2
< 6.2.0-36.37~22.04.1→ 6.2.0-36.37~22.04.1
Ubuntu:22.04:LTSlinux-ibm
< 5.15.0-1040.43→ 5.15.0-1040.43
Ubuntu:22.04:LTSlinux-intel-iotg
< 5.15.0-1043.49→ 5.15.0-1043.49
Ubuntu:22.04:LTSlinux-kvm
< 5.15.0-1044.49→ 5.15.0-1044.49
Ubuntu:22.04:LTSlinux-lowlatency
< 5.15.0-86.95→ 5.15.0-86.95
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19
All versions→ Not listed
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2
< 6.2.0-1016.16~22.04.1→ 6.2.0-1016.16~22.04.1
Ubuntu:22.04:LTSlinux-nvidia
< 5.15.0-1037.37→ 5.15.0-1037.37
Ubuntu:22.04:LTSlinux-nvidia-6.2
< 6.2.0-1011.11→ 6.2.0-1011.11
Ubuntu:22.04:LTSlinux-nvidia-tegra
< 5.15.0-1018.18→ 5.15.0-1018.18
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx
< 5.15.0-1005.5→ 5.15.0-1005.5
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
< 6.1.0-1019.19→ 6.1.0-1019.19
Ubuntu:22.04:LTSlinux-oracle
< 5.15.0-1045.51→ 5.15.0-1045.51
Ubuntu:22.04:LTSlinux-raspi
< 5.15.0-1040.43→ 5.15.0-1040.43
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
< 6.2.0-1009.10~22.04.1→ 6.2.0-1009.10~22.04.1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp
< 5.15.0-1025.29→ 5.15.0-1025.29
Ubuntu:Nvidia-BlueField:22.04:LTSlinux-bluefield
< 5.15.0-1027.29→ 5.15.0-1027.29
Ubuntu:Pro:FIPS-preview:22.04:LTSlinux-fips
All versions→ Not listed
Ubuntu:Pro:Realtime:22.04:LTSlinux-intel-iot-realtime
< 5.15.0-1040.42→ 5.15.0-1040.42
Ubuntu:Pro:Realtime:22.04:LTSlinux-realtime
< 5.15.0-1048.54→ 5.15.0-1048.54
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 use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.

Source: OSV.dev (Open Source Vulnerabilities) OSV

References

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