[SECURITY] Fedora 30 Update: qemu-3.1.0-8.fc30
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Fedora Update Notification
FEDORA-2019-f910d35647
2019-05-17 01:03:28.819440
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Name : qemu
Product : Fedora 30
Version : 3.1.0
Release : 8.fc30
URL : http://www.qemu.org/
Summary : QEMU is a FAST! processor emulator
Description :
QEMU is a generic and open source processor emulator which achieves a good
emulation speed by using dynamic translation. QEMU has two operating modes:
* Full system emulation. In this mode, QEMU emulates a full system (for
example a PC), including a processor and various peripherials. It can be
used to launch different Operating Systems without rebooting the PC or
to debug system code.
* User mode emulation. In this mode, QEMU can launch Linux processes compiled
for one CPU on another CPU.
As QEMU requires no host kernel patches to run, it is safe and easy to use.
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Update Information:
Define md-clear CPUID bit. Assuming an updated host kernel and microcode, the
md-clear bit will be automatically exposed to guests using the QEMU "-cpu host"
arg, or libvirt "host-model" or "host-passthrough" configurations.
Guests using
a named CPU model it must be manually updated to add this extra CPU feature.
Resolves CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091
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ChangeLog:
* Tue May 14 2019 Daniel P. Berrang�� <berrange(a)redhat.com> - 2:3.1.0-8
- Define md-clear CPUID bit
- Resolves: rhbz #1710002 (CVE-2018-12126), rhbz #1710004 (CVE-2018-12127),
rhbz #1710003 (CVE-2018-12130), rhbz #1710006 (CVE-2019-11091)
* Tue Apr 16 2019 Cole Robinson <crobinso(a)redhat.com> - 2:3.1.0-7
- Don't block migration with nested VMX (bz #1697997)
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References:
[ 1 ] Bug #1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data
Sampling - Information Leak (MLPDS)
https://bugzilla.redhat.com/show_bug.cgi?id=1667782
[ 2 ] Bug #1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data
Sampling (MSBDS)
https://bugzilla.redhat.com/show_bug.cgi?id=1646781
[ 3 ] Bug #1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling
Uncacheable Memory (MDSUM)
https://bugzilla.redhat.com/show_bug.cgi?id=1705312
[ 4 ] Bug #1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data
Sampling (MFBDS)
https://bugzilla.redhat.com/show_bug.cgi?id=1646784
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2019-f910d35647' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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