1.修復(fù)的CVE

·CVE-2021-25220

描述：ISC BIND是美國(guó)ISC公司的一套實(shí)現(xiàn)了DNS協(xié)議的開源軟件。ISC BIND 存在安全漏洞，該漏洞源于已經(jīng)收緊了接受記錄到緩存中的規(guī)則，以防止如果轉(zhuǎn)發(fā)器在配置的范圍之外發(fā)送記錄可能會(huì)中毒。

2.受影響的軟件包

·銀河麒麟高級(jí)服務(wù)器操作系統(tǒng) V10 SP1

aarch64架構(gòu):

bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind

x86_64架構(gòu):

bind、bind-chroot、bind-devel、bind-export-devel、bind-export-libs、bind-libs、bind-libs-lite、bind-pkcs11、bind-pkcs11-devel、bind-utils、python3-bind

3.軟件包修復(fù)版本

·銀河麒麟高級(jí)服務(wù)器操作系統(tǒng) V10 SP1

bind-9.11.21-8.p01.ky10

bind-chroot-9.11.21-8.p01.ky10

bind-devel-9.11.21-8.p01.ky10

bind-export-devel-9.11.21-8.p01.ky10

bind-export-libs-9.11.21-8.p01.ky10

bind-libs-9.11.21-8.p01.ky10

bind-libs-lite-9.11.21-8.p01.ky10

bind-pkcs11-9.11.21-8.p01.ky10

bind-pkcs11-devel-9.11.21-8.p01.ky10

bind-utils-9.11.21-8.p01.ky10

python3-bind-9.11.21-8.p01.ky10

4.修復(fù)方法

方法一：配置源進(jìn)行升級(jí)安裝

1.打開軟件包源配置文件，根據(jù)倉(cāng)庫(kù)地址進(jìn)行修改。

倉(cāng)庫(kù)源地址：

銀河麒麟高級(jí)服務(wù)器操作系統(tǒng) V10 SP1

aarch64:https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/

x86_64:https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/

2.配置完成后執(zhí)行更新命令進(jìn)行升級(jí)，命令如下：

yum update Packagename

方法二：下載安裝包進(jìn)行升級(jí)安裝

通過(guò)軟件包地址下載軟件包，使用軟件包升級(jí)命令根據(jù)受影響的軟件包列表進(jìn)行升級(jí)安裝,命令如下：

yum install Packagename

3.升級(jí)完成后是否需要重啟服務(wù)或操作系統(tǒng)：

·CVE-2021-25220：無(wú)需重啟操作系統(tǒng)與服務(wù)即可使漏洞修復(fù)生效。

5.軟件包下載地址

·銀河麒麟高級(jí)服務(wù)器操作系統(tǒng) V10 SP1

bind（aarch64）軟件包下載地址:

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-chroot-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-devel-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-export-devel-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-export-libs-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-libs-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-libs-lite-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-pkcs11-devel-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/bind-utils-9.11.21-8.p01.ky10.aarch64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/aarch64/Packages/python3-bind-9.11.21-8.p01.ky10.noarch.rpm

bind（x86_64）軟件包下載地址:

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-chroot-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-devel-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-export-devel-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-export-libs-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-libs-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-libs-lite-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-pkcs11-devel-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/bind-utils-9.11.21-8.p01.ky10.x86_64.rpm

https://update.cs2c.com.cn/NS/V10/V10SP1.1/os/adv/lic/updates/x86_64/Packages/python3-bind-9.11.21-8.p01.ky10.noarch.rpm

注：其他相關(guān)依賴包請(qǐng)到相同目錄下載

6.修復(fù)驗(yàn)證

使用軟件包查詢命令，查看相關(guān)軟件包版本是否與修復(fù)版本一致，如果版本一致，則說(shuō)明修復(fù)成功。

sudo rpm -qa | grep Packagename