Ubuntu 21.04：Linux 核心弱點 (USN-4950-1)
high Nessus Plugin ID 149406
語系：
概要
遠端 Ubuntu 主機缺少一個或多個安全性更新。說明
遠端 Ubuntu 21.04 主機上安裝的套件受到 USN-4950-1 公告中所提及的多個弱點影響。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
Plugin 詳細資訊
嚴重性: High
ID: 149406
檔案名稱: ubuntu_USN-4950-1.nasl
版本: 1.7
類型: local
代理程式: unix
已發布: 2021/5/12
已更新: 2023/1/17
支援的感應器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
風險資訊
VPR
風險因素: Critical
分數: 9.0
CVSS v2
風險因素: High
基本分數: 7.2
時間分數: 6.3
媒介: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2021-3491
CVSS v3
風險因素: High
基本分數: 8.8
時間分數: 8.4
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:H/RL:O/RC:C
弱點資訊
CPE: cpe:/o:canonical:ubuntu_linux:21.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1005-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1006-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1007-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1008-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1008-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-17-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-64k-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke, 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-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-20.04-edge, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-20.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-20.04-edge
必要的 KB 項目: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2021/5/11
弱點發布日期: 2021/5/11
可惡意利用
Core Impact
Metasploit (Linux eBPF ALU32 32-bit Invalid Bounds Tracking LPE)
參考資訊
CVE: CVE-2021-3489, CVE-2021-3490, CVE-2021-3491
USN: 4950-1