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云安全日报210223:Ubuntu配套虚拟化开源软件发现拒绝服务漏洞,需要尽快升级
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简介...
QEMU是一款用来完成硬件虚拟化及虚拟机托管的开源软件,它通过动态的二进制转换,模拟CPU,也可以通过KVM一起使用使得虚拟机的性能接近真实的计算机速度。
2月22日,Ubuntu发布了安全更新,修复了Ubuntu 配套QEMU虚拟化开源软件中发现的拒绝服务漏洞。以下是漏洞详情云安:
漏洞详情
来源:https://ubuntu.com/security/notices/USN-4467-3
CVE-2020-13754 CVSS3: 6.7 严重程度:重要
Ubuntu上QEMU错误地处理了某些操作,允许来宾OS用户通过msi-x mmio(msi-x一种中断机制,m全日mio内存映射)操作中的特定地址触发越界访问,可能会导致QEMU崩溃,从而导致拒绝服务。
受影响产品和版本
上述漏洞影响Ubuntu 20.10, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS
解决方案
可以通过将系统更新为以下软件包版本来解决此报2问题:
Ubuntu 20.10
qemu - 1:5.0-5ubuntu9.6
qemu-system - 1:5.0-5ubuntu9.6
qemu-system-arm - 1:5.0-5ubuntu9.6
qemu-system-mips - 1:5.0-5ubuntu9.6
qemu-syste10m-misc - 1:5.0-5ubuntu9.6
qemu-system-ppc - 1:5.0-5ubuntu9.6
qemu-system-s390x - 1:5.0-5ubuntu9.6
qemu-system-sparc - 1:5.0-5ubuntu9.6
qemu-system-x86 - 1:225.0-5ubuntu9.6
qemu-system-x86-microvm - 1:5.0-5ubuntu9.6
qemu-system-x86-xen - 1:5.0-5ubuntu9.6
Ubuntu 20.04
qemu - 1:4.2-3ubuntu6.14
qemu-system - 1:4.3:2-3ubuntu6.14
qemu-system-arm - 1:4.2-3ubuntu6.14
qemu-system-mips - 1:4.2-3ubuntu6.14
qemu-system-misc - 1:4.2-3ubuntu6.14
qemu-system-ppc - 1:4.2-3Ububuntu6.14
qemu-system-s390x - 1:4.2-3ubuntu6.14
qemu-system-sparc - 1:4.2-3ubuntu6.14
qemu-system-x86 - 1:4.2-3ubuntu6.14
qemu-system-x86-microvm - 1:4un.2-3ubuntu6.14
qemu-system-x86-xen - 1:4.2-3ubuntu6.14
Ubuntu 18.04
qemu - 1:2.11+dfsg-1ubuntu7.36
qemu-system - 1:2.11+dfsg-1ubuntu7.36
qemu-system-armtu - 1:2.11+dfsg-1ubuntu7.36
qemu-system-mips - 1:2.11+dfsg-1ubuntu7.36
qemu-system-misc - 1:2.11+dfsg-1ubuntu7.36
qemu-system-ppc - 1:2.11+dfsg-1ubuntu7.3配套6
qemu-system-s390x - 1:2.11+dfsg-1ubuntu7.36
qemu-system-sparc - 1:2.11+dfsg-1ubuntu7.36
qemu-system-x86 - 1:2.11+dfsg-1ubuntu7.36
Ubuntu 16.04
qemu虚拟 - 1:2.5+dfsg-5ubuntu10.51
qemu-system - 1:2.5+dfsg-5ubuntu10.51
qemu-system-aarch64 - 1:2.5+dfsg-5ubuntu10.51
qemu-system-arm - 1:2.5+dfsg-5ubuntu10.化开51
qemu-system-mips - 1:2.5+dfsg-5ubuntu10.51
qemu-system-misc - 1:2.5+dfsg-5ubuntu10.51
qemu-system-ppc - 1:2.5+dfsg-5ubuntu10.51
qemu-system-s390源软x - 1:2.5+dfsg-5ubuntu10.51
qemu-system-sparc - 1:2.5+dfsg-5ubuntu10.51
qemu-system-x86 - 1:2.5+dfsg-5ubuntu10.51
查看更多漏洞信息 以及升级请访问官网:
https://ubuntu.com/件发security/cve
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