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    安全漏洞补丁公告

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    公告ID（KYSA-202102-0042）

    公告ID：KYSA-202102-0042 公告摘要：qemu安全漏洞 安全等级：中等 发布日期：2022-02-24 影响CVE：CVE-2020-13754、CVE-2020-11947、CVE-2020-29443、CVE-2021-20181、CVE-2020-15859、CVE-2020-28916、CVE-2020-27821

    详细介绍

    1. 修复的CVE

    CVE-2020-13754

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）软件开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 4.2.0版本中的hw/pci/msix.c文件中存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

    CVE-2020-11947

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 4.1.0 存在安全漏洞，该漏洞源于有一个基于堆的缓冲区过读，可能会向攻击者可利用该漏洞泄露进程内存中的不相关信息。

    CVE-2020-29443

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 5.1.0存在缓冲区错误漏洞，该漏洞源于程序ide atapi.c允许越界读访问，因为缓冲区索引没有验证。

    CVE-2021-20181

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。QEMU guest system 存在安全漏洞，攻击者可利用该漏洞通过VirtFS目录共享触发致命错误，从而在主机系统上触发拒绝服务.

    CVE-2020-15859

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）软件开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 4.2.0版本中的hw/net/e1000e_core.c文件存在安全漏洞。攻击者可利用该漏洞导致QEMU进程崩溃（拒绝服务）。

    CVE-2020-28916

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 存在安全漏洞，攻击者可利用该漏洞可以通过QEMU的e1000e空包描述符触发过载，以触发主机系统上的拒绝服务。

    CVE-2020-27821

    QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

    QEMU 存在缓冲区错误漏洞，该漏洞源于 hw/pci/msix.c的msix_table_mmio_write()堆缓冲区溢出。

    2. 受影响的操作系统及软件包

    ·银河麒麟桌面操作系统V4 SP1、银河麒麟桌面操作系统V4 SP2、银河麒麟桌面操作系统V4 SP3、银河麒麟桌面操作系统V4 SP4

    x86_64 架构：

    qemu-block-extra、qemu-guest-agent、qemu-kvm、qemu-system-arm、qemu-system-common、qemu-system-mips、qemu-system-misc、qemu-system-ppc、qemu-system-sparc、qemu-system-x86、qemu-system、qemu-user-binfmt、qemu-user-static、qemu-user、qemu-utils、qemu

    arm64 架构：

    qemu-block-extra、qemu-guest-agent、qemu-kvm、qemu-system-aarch64、qemu-system-arm、qemu-system-common、qemu-system-mips、qemu-system-misc、qemu-system-ppc、qemu-system-sparc、qemu-system-x86、qemu-system、qemu-user-binfmt、qemu-user-static、qemu-user、qemu-utils、qemu

    ·银河麒麟服务器操作系统V4 SP1、银河麒麟服务器操作系统V4 SP2、银河麒麟服务器操作系统V4 SP3、银河麒麟服务器操作系统V4 SP4

    x86_64 架构：

    qemu-block-extra、qemu-guest-agent、qemu-kvm、qemu-system-arm、qemu-system-common、qemu-system-mips、qemu-system-misc、qemu-system-ppc、qemu-system-sparc、qemu-system-x86、qemu-system、qemu-user-binfmt、qemu-user-static、qemu-user、qemu-utils、qemu

    arm64 架构：

    qemu-block-extra、qemu-guest-agent、qemu-kvm、qemu-system-aarch64、qemu-system-arm、qemu-system-common、qemu-system-mips、qemu-system-misc、qemu-system-ppc、qemu-system-sparc、qemu-system-x86、qemu-system、qemu-user-binfmt、qemu-user-static、qemu-user、qemu-utils、qemu

    3. 软件包修复版本

    ·银河麒麟桌面操作系统V4 SP1、银河麒麟桌面操作系统V4 SP2、银河麒麟桌面操作系统V4 SP3、银河麒麟桌面操作系统V4 SP4

    1:2.5+dfsg-5kord10.51

    ·银河麒麟服务器操作系统V4 SP1、银河麒麟服务器操作系统V4 SP2、银河麒麟服务器操作系统V4 SP3、银河麒麟服务器操作系统V4 SP4

    1:2.5+dfsg-5kord10.51

    4. 修复方法

    方法一：配置源进行升级安装

    打开软件包源配置文件，根据仓库地址进行修改。

    4.0.2-sp1桌面版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp1-desktop main restricted universe multiverse

    4.0.2-sp2桌面版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp2-desktop main restricted universe multiverse

    4.0.2-sp3桌面版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp3-desktop main restricted universe multiverse

    4.0.2-sp4桌面版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp4-desktop main restricted universe multiverse

    4.0.2-sp1服务器版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp1-server main restricted universe multiverse

    4.0.2-sp2服务器版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp2-server main restricted universe multiverse

    4.0.2-sp3服务器版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp3-server main restricted universe multiverse

    4.0.2-sp4服务器版:

    http://archive.cyjm16888.com/kylin/KYLIN-ALL 4.0.2sp4-server main restricted universe multiverse

    配置完成后执行更新命令进行升级

    $sudo apt update

    $sudo apt install qemu

    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 dpkg -i /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V4

    x86_64软件包下载地址

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-block-extra_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-guest-agent_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-kvm_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-arm_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-common_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-mips_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-misc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-ppc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-sparc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-x86_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-binfmt_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-static_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-utils_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu_2.5%2Bdfsg-5kord10.51_amd64.deb

    arm64软件包下载地址

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-block-extra_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-guest-agent_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-kvm_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-aarch64_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-arm_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-common_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-mips_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-misc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-ppc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-sparc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-x86_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-binfmt_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-static_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-utils_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu_2.5%2Bdfsg-5kord10.51_arm64.deb

    银河麒麟服务器操作系统V4

    x86_64软件包下载地址

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-block-extra_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-guest-agent_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-kvm_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-arm_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-common_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-mips_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-misc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-ppc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-sparc_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-x86_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-binfmt_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-static_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-utils_2.5%2Bdfsg-5kord10.51_amd64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu_2.5%2Bdfsg-5kord10.51_amd64.deb

    arm64软件包下载地址

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-block-extra_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-guest-agent_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-kvm_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-aarch64_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-arm_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-common_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-mips_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-misc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-ppc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-sparc_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system-x86_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-system_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-binfmt_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user-static_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-user_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu-utils_2.5%2Bdfsg-5kord10.51_arm64.deb

    http://archive.cyjm16888.com/kylin/KYLIN-ALL/pool/main/q/qemu/qemu_2.5%2Bdfsg-5kord10.51_arm64.deb

    6. 修复验证

    使用软件包查询命令，查看相关的软件包版本与修复版本一致则成功修复。

    $sudo dpkg -l |grep Package

    注：Package为软件包包名。


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