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Debian Security Advisory DSA 4566-1 (qemu - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'qemu' package(s) announced via the DSA-4566-1 advisory.
Insight
Insight
This update for QEMU, a fast processor emulator, backports support to passthrough the pschange-mc-no CPU flag. The virtualised MSR seen by a guest is set to show the bug as fixed, allowing to disable iTLB Multihit mitigations in nested hypervisors (cf. DSA 4564-1).
Affected Software
Affected Software
'qemu' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), this problem has been fixed in version 1:3.1+dfsg-8+deb10u3. We recommend that you upgrade your qemu packages.