1.修復的CVE ·CVE-2022-2526 描述：該漏洞源于resolved-dns-stream.c 中的 on_stream_io() 函數和 dns_stream_complete() 函數未增加 DnsStream 對象的引用計數，調用的其他函數和回調可以取消對DNSStream對象的引用，從而導致在以后仍然使用引用時會出現釋放后重用問題。 2.受影響的軟件包 ·中標麒麟高級服務器操作系統 V7 ·aarch64架構: libgudev1、libgudev1-devel、systemd、systemd-devel、systemd-journal-gateway、systemd-libs、systemd-networkd、systemd-python、systemd-resolved、systemd-sysv ·x86_64架構: libgudev1、libgudev1-devel、systemd、systemd-devel、systemd-journal-gateway、systemd-libs、systemd-networkd、systemd-python、systemd-resolved、systemd-sysv ·銀河麒麟高級服務器操作系統 V10 ·aarch64架構: libgudev1、libgudev1-devel、systemd、systemd-devel、systemd-journal-gateway、systemd-libs、systemd-networkd、systemd-python、systemd-resolved、systemd-sysv ·x86_64架構: libgudev1、libgudev1-devel、systemd、systemd-devel、systemd-journal-gateway、systemd-libs、systemd-networkd、systemd-python、systemd-resolved、systemd-sysv 3.軟件包修復版本 ·中標麒麟高級服務器操作系統 V7 (aarch64、x86_64) libgudev1-219-78.el7_9.7.ns7.01或以上版本 libgudev1-devel-219-78.el7_9.7.ns7.01或以上版本 systemd-219-78.el7_9.7.ns7.01或以上版本 systemd-devel-219-78.el7_9.7.ns7.01或以上版本 systemd-journal-gateway-219-78.el7_9.7.ns7.01或以上版本 systemd-libs-219-78.el7_9.7.ns7.01或以上版本 systemd-networkd-219-78.el7_9.7.ns7.01或以上版本 systemd-python-219-78.el7_9.7.ns7.01或以上版本 systemd-resolved-219-78.el7_9.7.ns7.01或以上版本 systemd-sysv-219-78.el7_9.7.ns7.01或以上版本 ·銀河麒麟高級服務器操作系統 V10 (aarch64、x86_64) libgudev1-219-78.el7_9.7.ns7.01或以上版本 libgudev1-devel-219-78.el7_9.7.ns7.01或以上版本 systemd-219-78.el7_9.7.ns7.01或以上版本 systemd-devel-219-78.el7_9.7.ns7.01或以上版本 systemd-journal-gateway-219-78.el7_9.7.ns7.01或以上版本 systemd-libs-219-78.el7_9.7.ns7.01或以上版本 systemd-networkd-219-78.el7_9.7.ns7.01或以上版本 systemd-python-219-78.el7_9.7.ns7.01或以上版本 systemd-resolved-219-78.el7_9.7.ns7.01或以上版本 systemd-sysv-219-78.el7_9.7.ns7.01或以上版本 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： 中標麒麟高級服務器操作系統 V7 aarch64:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/ 銀河麒麟高級服務器操作系統 V10 aarch64:https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V10/V10-ZJ/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 3.升級完成后是否需要重啟服務或操作系統： CVE-2022-2526:無需重啟操作系統與服務即可使漏洞修復生效。 5.軟件包下載地址 ·中標麒麟高級服務器操作系統 V7 systemd(aarch64)軟件包下載地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libgudev1-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-journal-gateway-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-networkd-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-python-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/systemd-sysv-219-78.el7_9.7.ns7.01.aarch64.rpm systemd(x86_64)軟件包下載地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libgudev1-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libgudev1-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-journal-gateway-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-networkd-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-python-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/systemd-sysv-219-78.el7_9.7.ns7.01.x86_64.rpm ·銀河麒麟高級服務器操作系統 V10 systemd(aarch64)軟件包下載地址: https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/libgudev1-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-journal-gateway-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-networkd-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-python-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/aarch64/Packages/systemd-sysv-219-78.el7_9.7.ns7.01.aarch64.rpm systemd(x86_64)軟件包下載地址: https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libgudev1-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libgudev1-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/libgudev1-devel-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-devel-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-journal-gateway-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-libs-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-networkd-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-python-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-resolved-219-78.el7_9.7.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V10/V10-ZJ/os/adv/lic/updates/x86_64/Packages/systemd-sysv-219-78.el7_9.7.ns7.01.x86_64.rpm 注：其他相關依賴包請到相同目錄下載 6.修復驗證 使用軟件包查詢命令，查看相關軟件包版本是否與修復版本一致，如果版本一致，則說明修復成功。 sudo rpm -qa | grep Packagename