Ubuntu 18.04 LTS / 20.04 LTS：Linux 核心弱點 (USN-5116-2)

high Nessus Plugin ID 154352

語系：

概要

遠端 Ubuntu 主機缺少一個或多個安全性更新。

描述

遠端 Ubuntu 18.04 LTS/20.04 LTS 主機上安裝的套件受到 USN-5116-2 公告中所提及的多個弱點影響。

 - 未明確時間和特製的流量可造成 WLAN 裝置發生內部錯誤，導致第 2 層 Wi-Fi 加密不當，進而可能因 Snapdragon Auto、Snapdragon Compute、Snapdragon Connectivity、Snapdragon Consumer IOT、Snapdragon Industrial IOT、Snapdragon Mobile、Snapdragon Voice & Music、Snapdragon Wearables、Snapdragon Wired Infrastructure 和網路中 APQ8053、IPQ4019、IPQ8064、MSM8909W、MSM8996AU、QCA9531、QCN5502、QCS405、SDX20、SM6150、SM7150 中的離散流量設定而造成資訊洩漏 (CVE-2020-3702)

 - 在 5.12.11 版之前的 Linux 核心中，arch/x86/kvm/mmu/paging_tmpl.h 不會正確計算陰影頁面的存取權限，進而導致遺漏來賓保護頁面錯誤。(CVE-2021-38198)

 - 在 Linux 核心 5.13.3 之前版本中，drivers/net/ethernet/xilinx/xilinx_emaclite.c 會列印核心指標 (即真正的 IOMEM 指標)，這讓攻擊者更容易破解 ASLR 保護機制。(CVE-2021-38205)

 - 在 Linux 核心 5.13.13 以及之前的所有版本中， 在 ext4 子系統中 fs/ext4/inline.c 的 ext4_write_inline_data_end 中發現爭用情形。(CVE-2021-40490)

請注意，Nessus 並未測試此問題，而是僅依據應用程式自我報告的版本號碼。

解決方案

更新受影響的套件。

另請參閱

https://ubuntu.com/security/notices/USN-5116-2

Plugin 詳細資訊

嚴重性: High

ID: 154352

檔案名稱: ubuntu_USN-5116-2.nasl

版本: 1.5

類型: local

代理程式: unix

發布日期: 2021/10/22

更新日期: 2023/1/17

支援的感應器: Frictionless Assessment Azure, Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent

風險資訊

VPR

風險因素: Medium

分數: 6.7

CVSS v2

風險因素: Medium

基本分數: 6.9

時間分數: 5.1

媒介: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

時間媒介: CVSS2#E:U/RL:OF/RC:C

CVSS 評分資料來源: CVE-2021-42008

CVSS v3

風險因素: High

基本分數: 7.8

時間分數: 6.8

媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:U/RL:O/RC:C

弱點資訊

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.4-headers-5.4.0-1062, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.4-tools-5.4.0-1062, p-cpe:/a:canonical:ubuntu_linux:linux-azure-cloud-tools-5.4.0-1062, p-cpe:/a:canonical:ubuntu_linux:linux-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-azure-headers-5.4.0-1062, p-cpe:/a:canonical:ubuntu_linux:linux-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-azure-tools-5.4.0-1062, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1045-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-azure, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-gke, p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.4-headers-5.4.0-1054, p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.4-tools-5.4.0-1054, p-cpe:/a:canonical:ubuntu_linux:linux-gke-headers-5.4.0-1054, p-cpe:/a:canonical:ubuntu_linux:linux-gke-tools-5.4.0-1054, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4-headers-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4-source-5.4.0, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4-tools-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4-cloud-tools-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-source-5.4.0, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-cloud-tools-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-tools-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-headers-5.4.0-1025, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1045-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-headers-aws, p-cpe:/a:canonical:ubuntu_linux:linux-headers-aws-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-aws-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-azure, p-cpe:/a:canonical:ubuntu_linux:linux-headers-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gke, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gke-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-headers-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-headers-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-oracle-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-aws, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi2-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-aws-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-raspi2-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-aws-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-azure, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gke-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1045-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.4-headers-5.4.0-1056, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.4-tools-5.4.0-1056, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-headers-5.4.0-1056, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws, p-cpe:/a:canonical:ubuntu_linux:linux-oracle-tools-5.4.0-1056, p-cpe:/a:canonical:ubuntu_linux:linux-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-5.4-headers-5.4.0-1045, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-5.4-tools-5.4.0-1045, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws-edge, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-headers-5.4.0-1045, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-raspi-tools-5.4.0-1045, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-raspi2-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-raspi2-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-signed-azure, p-cpe:/a:canonical:ubuntu_linux:linux-signed-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-signed-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-signed-image-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke, p-cpe:/a:canonical:ubuntu_linux:linux-signed-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-signed-image-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-signed-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-signed-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1045-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-tools-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-tools-aws-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-aws-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-azure, p-cpe:/a:canonical:ubuntu_linux:linux-tools-azure-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-azure-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gke, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gke-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gkeop-5.4, p-cpe:/a:canonical:ubuntu_linux:linux-tools-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-tools-oracle-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-oracle-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi2-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-raspi2-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1045-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1056-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1058-aws, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1062-azure, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1025-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1054-gke, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1056-oracle, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-aws, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.4-cloud-tools-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.4-headers-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.4-tools-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-aws-cloud-tools-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-aws-edge, p-cpe:/a:canonical:ubuntu_linux:linux-aws-headers-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-aws-lts-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-aws-tools-5.4.0-1058, p-cpe:/a:canonical:ubuntu_linux:linux-azure, p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.4-cloud-tools-5.4.0-1062

必要的 KB 項目: Host/Debian/dpkg-l, Host/Ubuntu, Host/cpu, Host/Ubuntu/release

可輕鬆利用: No known exploits are available

修補程式發佈日期: 2021/10/22

弱點發布日期: 2020/9/8

參考資訊

CVE: CVE-2020-3702, CVE-2021-3732, CVE-2021-38198, CVE-2021-38205, CVE-2021-40490, CVE-2021-42008

USN: 5116-2