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    Ubuntu 4511-1: QEMU vulnerability

    Date
    157
    Posted By
    QEMU could be made to crash or run programs.
    ==========================================================================
    Ubuntu Security Notice USN-4511-1
    September 17, 2020
    
    qemu vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    QEMU could be made to crash or run programs.
    
    Software Description:
    - qemu: Machine emulator and virtualizer
    
    Details:
    
    Ziming Zhang, Xiao Wei, Gonglei Arei, and Yanyu Zhang discovered that QEMU
    incorrectly handled certain USB packets. An attacker inside the guest could
    use this issue to cause QEMU to crash, resulting in a denial of service, or
    possibly execute arbitrary code on the host. In the default installation,
    when QEMU is used with libvirt, attackers would be isolated by the libvirt
    AppArmor profile.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      qemu                            1:4.2-3ubuntu6.6
      qemu-system                     1:4.2-3ubuntu6.6
      qemu-system-arm                 1:4.2-3ubuntu6.6
      qemu-system-mips                1:4.2-3ubuntu6.6
      qemu-system-ppc                 1:4.2-3ubuntu6.6
      qemu-system-s390x               1:4.2-3ubuntu6.6
      qemu-system-sparc               1:4.2-3ubuntu6.6
      qemu-system-x86                 1:4.2-3ubuntu6.6
      qemu-system-x86-microvm         1:4.2-3ubuntu6.6
      qemu-system-x86-xen             1:4.2-3ubuntu6.6
    
    Ubuntu 18.04 LTS:
      qemu                            1:2.11+dfsg-1ubuntu7.32
      qemu-system                     1:2.11+dfsg-1ubuntu7.32
      qemu-system-arm                 1:2.11+dfsg-1ubuntu7.32
      qemu-system-mips                1:2.11+dfsg-1ubuntu7.32
      qemu-system-ppc                 1:2.11+dfsg-1ubuntu7.32
      qemu-system-s390x               1:2.11+dfsg-1ubuntu7.32
      qemu-system-sparc               1:2.11+dfsg-1ubuntu7.32
      qemu-system-x86                 1:2.11+dfsg-1ubuntu7.32
    
    Ubuntu 16.04 LTS:
      qemu                            1:2.5+dfsg-5ubuntu10.46
      qemu-block-extra                1:2.5+dfsg-5ubuntu10.46
      qemu-guest-agent                1:2.5+dfsg-5ubuntu10.46
      qemu-kvm                        1:2.5+dfsg-5ubuntu10.46
      qemu-system                     1:2.5+dfsg-5ubuntu10.46
      qemu-system-aarch64             1:2.5+dfsg-5ubuntu10.46
      qemu-system-arm                 1:2.5+dfsg-5ubuntu10.46
      qemu-system-common              1:2.5+dfsg-5ubuntu10.46
      qemu-system-mips                1:2.5+dfsg-5ubuntu10.46
      qemu-system-misc                1:2.5+dfsg-5ubuntu10.46
      qemu-system-ppc                 1:2.5+dfsg-5ubuntu10.46
      qemu-system-s390x               1:2.5+dfsg-5ubuntu10.46
      qemu-system-sparc               1:2.5+dfsg-5ubuntu10.46
      qemu-system-x86                 1:2.5+dfsg-5ubuntu10.46
      qemu-user                       1:2.5+dfsg-5ubuntu10.46
      qemu-user-binfmt                1:2.5+dfsg-5ubuntu10.46
      qemu-user-static                1:2.5+dfsg-5ubuntu10.46
      qemu-utils                      1:2.5+dfsg-5ubuntu10.46
    
    After a standard system update you need to restart all QEMU virtual
    machines to make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4511-1
      CVE-2020-14364
    
    Package Information:
      https://launchpad.net/ubuntu/+source/qemu/1:4.2-3ubuntu6.6
      https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-1ubuntu7.32
      https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu10.46
    
    

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