CentOS 7：libvirt (RHSA-2020:4000)
medium Nessus Plugin ID 141632
語言:
概要
遠端 CentOS Linux 主機缺少一個或多個安全性更新。說明
遠端 CentOS Linux 7 主機上安裝的套件受到 RHSA-2020:4000 公告中提及的多個弱點影響。- 在 6.0.0 之前的 libvirt 中，qemu/qemu_driver.c 在查詢來賓代理程式期間，未正確處理監控工作的保留，攻擊者可利用此問題，造成拒絕服務 (API 封鎖)。(CVE-2019-20485)
- 在負責目標路徑擷取儲存集區的 libvirt API 中發現了一個 NULL 指標解除參照，該錯誤是在上游版本 3.10.0 中引入，並在 6.0.0 中得到修復。更詳細地說，此瑕疵會影響在沒有目標路徑的情況下建立的儲存集區，例如 gluster 和 RBD 等網路型集區。
具有唯讀連線的無權限使用者可濫用此瑕疵造成 libvirt 程序損毀，進而可能導致拒絕服務。(CVE-2020-10703)
請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。
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: 141632
檔案名稱: centos_RHSA-2020-4000.nasl
版本: 1.6
類型: local
代理程式: unix
已發布: 2020/10/20
已更新: 2024/10/9
支援的感應器: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
風險資訊
VPR
風險因素: Medium
分數: 4.4
Vendor
Vendor Severity: Moderate
CVSS v2
風險因素: Medium
基本分數: 4
時間性分數: 3.1
媒介: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 評分資料來源: CVE-2020-10703
CVSS v3
風險因素: Medium
基本分數: 6.5
時間性分數: 5.9
媒介: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
時間媒介: CVSS:3.0/E:P/RL:O/RC:C
弱點資訊
CPE: p-cpe:/a:centos:centos:libvirt-daemon-driver-network, p-cpe:/a:centos:centos:libvirt-daemon-config-network, p-cpe:/a:centos:centos:libvirt, p-cpe:/a:centos:centos:libvirt-libs, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-disk, p-cpe:/a:centos:centos:libvirt-lock-sanlock, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:centos:centos:libvirt-daemon-driver-interface, p-cpe:/a:centos:centos:libvirt-login-shell, p-cpe:/a:centos:centos:libvirt-daemon-driver-qemu, p-cpe:/a:centos:centos:libvirt-nss, p-cpe:/a:centos:centos:libvirt-daemon-kvm, p-cpe:/a:centos:centos:libvirt-daemon, p-cpe:/a:centos:centos:libvirt-admin, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-core, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-logical, p-cpe:/a:centos:centos:libvirt-devel, p-cpe:/a:centos:centos:libvirt-docs, p-cpe:/a:centos:centos:libvirt-client, p-cpe:/a:centos:centos:libvirt-daemon-config-nwfilter, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-gluster, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-rbd, p-cpe:/a:centos:centos:libvirt-daemon-driver-lxc, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:libvirt-bash-completion, p-cpe:/a:centos:centos:libvirt-daemon-lxc, p-cpe:/a:centos:centos:libvirt-daemon-driver-nwfilter, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-mpath, p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-scsi, p-cpe:/a:centos:centos:libvirt-daemon-driver-nodedev, p-cpe:/a:centos:centos:libvirt-daemon-driver-secret
必要的 KB 項目: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu
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: 2020/10/20
弱點發布日期: 2020/3/19
參考資訊
CVE: CVE-2019-20485, CVE-2020-10703
RHSA: 2020:4000