Debian Security Advisory
DSA-4566-1 qemu -- security update
- Date Reported:
- 12 Nov 2019
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 944623.
- More information:
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).
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.
For the detailed security status of qemu please refer to its security tracker page at: https://security-tracker.debian.org/tracker/qemu