安全漏洞

安全漏洞补丁公告

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公告ID(KYSA-202110-0012

公告ID:KYSA-202110-0012 公告摘要:bind9安全漏洞 等级:中等 发布日期:2021-11-23

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注:本公告所涉及的漏洞修复信息知识产权全部归麒麟软件有限公司所有,此安全漏洞补丁公告仅适用于麒麟软件操作系统通用主线产品,定制、OEM等版本可根据需要联系售后获取支持。任何媒体、网站或个人转载使用时不得进行商业性的原版原式的转载,也不得歪曲和篡改所发布的内容。此声明以及其修改权、更新权及最终解释权均归本网所有。 1. 修复的CVE CVE-2021-25219 ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。BIND 中存在资源管理错误漏洞,该漏洞源于产品的授权服务器的相应处理存在错误。攻击者可通过该漏洞导致BIND解析器性能下降进而导致查询处理延迟。 2. 受影响的操作系统及软件包 · 银河麒麟操作系统V10桌面版、V4 bind9 bind9-dnsutils bind9-doc bind9-host bind9-libs bind9-utils bind9utils dnsutils ·银河麒麟桌面操作系统V10 SP1 bind9 bind9-dnsutils bind9-doc bind9-host bind9-libs bind9-utils bind9utils dnsutils 3. 软件包修复版本 软件包:bind9 9.10.3.dfsg.P4-8kord1.19+esm1(V4、V10) 9.16.1-0kylin2.9(V10 SP1) 4. 修复方法 方法一:升级安装 执行更新命令进行升级 $sudo apt update $sudo apt install bind9 方法二:下载软件包进行升级安装 通过软件包地址下载软件包,使用软件包升级命令根据受影响的软件包列表升级相关的组件包。 $sudo apt-get install /Path1/Package1 /Path2/Package2 /Path3/Package3…… 注:Path 指软件包下载到本地的路径,Package指下载的软件包名称,多个软件包则以空格分开。 5. 软件包下载地址 银河麒麟桌面操作系统V10、V4 X86_64软件包下载地址 http://archive.kylinos.cn/kylin/KYLIN-ALL/pool/main/b/bind9/bind9-doc_9.10.3.dfsg.P4-8kord1.19+esm1_all.deb 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