Ubuntu 18.04 LTS / 20.04 LTS：Linux 核心弱點 (USN-5116-1)

high Nessus Plugin ID 154278

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-5116-1 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-5116-1

Plugin 詳細資訊

嚴重性: High

ID: 154278

檔案名稱: ubuntu_USN-5116-1.nasl

版本: 1.5

類型: local

代理程式: unix

發布日期: 2021/10/20

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, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-bluefield-headers-5.4.0-1020, p-cpe:/a:canonical:ubuntu_linux:linux-bluefield-tools-5.4.0-1020, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-89-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-buildinfo-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-common, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-generic, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-generic-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-lowlatency-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-cloud-tools-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-crashdump, p-cpe:/a:canonical:ubuntu_linux:linux-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.4-headers-5.4.0-1055, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.4-tools-5.4.0-1055, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic, p-cpe:/a:canonical:ubuntu_linux:linux-gcp-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-generic, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic-lpae-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-generic-lpae-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-headers-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-headers-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-generic-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-lowlatency-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-oem, p-cpe:/a:canonical:ubuntu_linux:linux-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-headers-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-generic-lpae-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-snapdragon-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-snapdragon-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-headers-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-headers-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-headers-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-generic-lpae-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-cloud-tools-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-cloud-tools-common, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-headers-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-source-5.4.0, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-tools-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.4-tools-common, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-89-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-headers-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-headers-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-headers-gcp-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-extra-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-extra-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-unsigned-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-kvm-headers-5.4.0-1048, p-cpe:/a:canonical:ubuntu_linux:linux-kvm-tools-5.4.0-1048, p-cpe:/a:canonical:ubuntu_linux:linux-libc-dev, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-89-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-modules-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-gcp-edge, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-modules-extra-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-oem, p-cpe:/a:canonical:ubuntu_linux:linux-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-oem-osp1-tools-host, p-cpe:/a:canonical:ubuntu_linux:linux-oem-tools-host, p-cpe:/a:canonical:ubuntu_linux:linux-snapdragon-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-snapdragon-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-source, p-cpe:/a:canonical:ubuntu_linux:linux-source-5.4.0, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1020-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1048-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-1055-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-89, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-89-generic, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-89-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-tools-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-tools-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-tools-common, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-tools-gcp-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic-lpae-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-generic-lpae-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-host, p-cpe:/a:canonical:ubuntu_linux:linux-tools-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-tools-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-tools-lowlatency-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-lowlatency-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-oem, p-cpe:/a:canonical:ubuntu_linux:linux-tools-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-tools-snapdragon-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-snapdragon-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-tools-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-tools-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-tools-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-virtual-hwe-18.04, p-cpe:/a:canonical:ubuntu_linux:linux-virtual-hwe-18.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-89-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-89-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-extra-virtual

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: 2021/10/20

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: 5116-1