Oracle Linux 7：libvirt (ELSA-2020-5961)
medium Nessus Plugin ID 146198
語系：
概要
遠端 Oracle Linux 主機缺少安全性更新。說明
遠端 Oracle Linux 7 主機上安裝的套件受到 ELSA-2020-5961 公告中提及的一個弱點影響。- 在 6.8.0 之前的版本中，發現在負責要求與執行 QEMU 網域之網路介面相關資訊的 libvirt API 中發生一個重複釋放記憶體問題。此缺陷會影響 polkit 存取控制驅動程式。具體而言，使用有限的 ACL 權限連線至讀寫通訊端的用戶端可利用此瑕疵造成 libvirt 程序當機，進而導致拒絕服務，或可能提升其在系統上的權限。此弱點對於資料的機密性和完整性以及系統可用性威脅最大。(CVE-2020-25637)
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: Medium
ID: 146198
檔案名稱: oraclelinux_ELSA-2020-5961.nasl
版本: 1.3
類型: local
代理程式: unix
已發布: 2021/2/4
已更新: 2021/2/5
支援的感應器: Frictionless Assessment Agent, Nessus Agent, Nessus
風險資訊
VPR
風險因素: Medium
分數: 6.7
CVSS v2
風險因素: High
基本分數: 7.2
時間分數: 5.3
媒介: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2020-25637
CVSS v3
風險因素: Medium
基本分數: 6.7
時間分數: 5.8
媒介: CVSS:3.0/AV:L/AC:L/PR:H/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: p-cpe:/a:oracle:linux:libvirt-daemon-config-nwfilter, p-cpe:/a:oracle:linux:libvirt-daemon-driver-network, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-disk, p-cpe:/a:oracle:linux:libvirt-daemon-kvm, p-cpe:/a:oracle:linux:libvirt-lock-sanlock, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-scsi, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-mpath, p-cpe:/a:oracle:linux:libvirt-login-shell, p-cpe:/a:oracle:linux:libvirt-nss, p-cpe:/a:oracle:linux:libvirt-daemon-lxc, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-core, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nodedev, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nwfilter, p-cpe:/a:oracle:linux:libvirt, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage, p-cpe:/a:oracle:linux:libvirt-daemon-qemu, p-cpe:/a:oracle:linux:libvirt-devel, p-cpe:/a:oracle:linux:libvirt-docs, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-gluster, p-cpe:/a:oracle:linux:libvirt-daemon-driver-interface, p-cpe:/a:oracle:linux:libvirt-bash-completion, p-cpe:/a:oracle:linux:libvirt-daemon-driver-secret, p-cpe:/a:oracle:linux:libvirt-libs, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:oracle:linux:libvirt-client, p-cpe:/a:oracle:linux:libvirt-daemon-config-network, p-cpe:/a:oracle:linux:libvirt-daemon-driver-qemu, p-cpe:/a:oracle:linux:libvirt-daemon-driver-lxc, p-cpe:/a:oracle:linux:libvirt-daemon, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-logical, p-cpe:/a:oracle:linux:libvirt-admin
必要的 KB 項目: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled
可輕鬆利用: No known exploits are available
修補程式發佈日期: 2020/12/1
弱點發布日期: 2020/10/6
參考資訊
CVE: CVE-2020-25637