1. 修復的CVE信息
CVE-2021-3631
描述：libvirt 在為 VM 的動態標簽生成 SELinux MCS 類別對時發現了一個漏洞。該漏洞允許一個被利用的訪客訪問標記為另一個訪客的文件，從而突破 sVirt 限制。此漏洞的最大威脅是機密性和完整性。
CVE-2021-3667
描述：在 libvirt 的 virStoragePoolLookupByTargetPath API 中存在不正確的鎖定漏洞。它是發生在 storagePoolLookupByTargetPath 函數中，其中鎖定的 virStoragePoolObj 對象在 ACL 權限失敗時未正確釋放。連接到具有有限 ACL 權限的讀寫套接字的客戶端可以使用此缺陷來獲取鎖并阻止其他用戶訪問存儲池/卷 API,從而導致拒絕服務條件。此漏洞的最大威脅是系統可用性。
2. 影響的操作系統及修復版本
銀河麒麟高級服務器操作系統 V10 SP1
libvirt-6.2.0-11.ky10
libvirt-admin-6.2.0-11.ky10
libvirt-bash-completion-6.2.0-11.ky10
libvirt-client-6.2.0-11.ky10
libvirt-daemon-6.2.0-11.ky10
libvirt-daemon-config-network-6.2.0-11.ky10
libvirt-daemon-config-nwfilter-6.2.0-11.ky10
libvirt-daemon-driver-interface-6.2.0-11.ky10
libvirt-daemon-driver-network-6.2.0-11.ky10
libvirt-daemon-driver-nodedev-6.2.0-11.ky10
libvirt-daemon-driver-nwfilter-6.2.0-11.ky10
libvirt-daemon-driver-qemu-6.2.0-11.ky10
libvirt-daemon-driver-secret-6.2.0-11.ky10
libvirt-daemon-driver-storage-6.2.0-11.ky10
libvirt-daemon-driver-storage-core-6.2.0-11.ky10
libvirt-daemon-driver-storage-disk-6.2.0-11.ky10
libvirt-daemon-driver-storage-gluster-6.2.0-11.ky10
libvirt-daemon-driver-storage-iscsi-6.2.0-11.ky10
libvirt-daemon-driver-storage-iscsi-direct-6.2.0-11.ky10
libvirt-daemon-driver-storage-logical-6.2.0-11.ky10
libvirt-daemon-driver-storage-mpath-6.2.0-11.ky10
libvirt-daemon-driver-storage-rbd-6.2.0-11.ky10
libvirt-daemon-driver-storage-scsi-6.2.0-11.ky10
libvirt-daemon-kvm-6.2.0-11.ky10
libvirt-daemon-qemu-6.2.0-11.ky10
libvirt-devel-6.2.0-11.ky10
libvirt-docs-6.2.0-11.ky10
libvirt-libs-6.2.0-11.ky10
libvirt-lock-sanlock-6.2.0-11.ky10
libvirt-nss-6.2.0-11.ky10
libvirt-wireshark-6.2.0-11.ky10
3. 受影響的軟件包
銀河麒麟高級服務器操作系統 V10 SP1
aarch64:libvirt、libvirt-admin、libvirt-bash-completion、libvirt-client、libvirt-daemon、libvirt-daemon-config-network、libvirt-daemon-config-nwfilter、libvirt-daemon-driver-interface、libvirt-daemon-driver-network、libvirt-daemon-driver-nodedev、libvirt-daemon-driver-nwfilter、libvirt-daemon-driver-qemu、libvirt-daemon-driver-secret、libvirt-daemon-driver-storage、libvirt-daemon-driver-storage-core、libvirt-daemon-driver-storage-disk、libvirt-daemon-driver-storage-gluster、libvirt-daemon-driver-storage-iscsi、libvirt-daemon-driver-storage-iscsi-direct、libvirt-daemon-driver-storage-logical、libvirt-daemon-driver-storage-mpath、libvirt-daemon-driver-storage-rbd、libvirt-daemon-driver-storage-scsi、libvirt-daemon-kvm、libvirt-daemon-qemu、libvirt-devel、libvirt-docs、libvirt-libs、libvirt-lock-sanlock、libvirt-nss、libvirt-wireshark
x86_64:libvirt、libvirt-admin、libvirt-bash-completion、libvirt-client、libvirt-daemon、libvirt-daemon-config-network、libvirt-daemon-config-nwfilter、libvirt-daemon-driver-interface、libvirt-daemon-driver-network、libvirt-daemon-driver-nodedev、libvirt-daemon-driver-nwfilter、libvirt-daemon-driver-qemu、libvirt-daemon-driver-secret、libvirt-daemon-driver-storage、libvirt-daemon-driver-storage-core、libvirt-daemon-driver-storage-disk、libvirt-daemon-driver-storage-gluster、libvirt-daemon-driver-storage-iscsi、libvirt-daemon-driver-storage-iscsi-direct、libvirt-daemon-driver-storage-logical、libvirt-daemon-driver-storage-mpath、libvirt-daemon-driver-storage-rbd、libvirt-daemon-driver-storage-scsi、libvirt-daemon-kvm、libvirt-daemon-qemu、libvirt-devel、libvirt-docs、libvirt-libs、libvirt-lock-sanlock、libvirt-nss、libvirt-wireshark
4. 修復方法
方法一：配置源進行升級安裝
1.打開軟件包源配置文件，根據倉庫地址進行修改。
倉庫源地址：
銀河麒麟高級服務器操作系統 V10 SP1
aarch64:http://update.cs2c.com.cn:8080/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/
x86_64:http://update.cs2c.com.cn:8080/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/
2.配置完成后執行更新命令進行升級，命令如下：yum update Packagename
方法二：下載安裝包進行升級安裝
通過軟件包地址下載軟件包，使用軟件包升級命令根據受影響的軟件包列表進行升級安裝,命令如下：yum install Packagename
5. 軟件包下載地址
銀河麒麟高級服務器操作系統 V10 SP1
libvirt aarch64軟件包下載地址:
libvirt x86_64軟件包下載地址:
注：其他相關依賴包請到相同目錄下載
