Security Information / 2019 / Security Information -- DSA-4566-1 qemu

Debian Security Advisory

DSA-4566-1 qemu -- security update

Date Reported:

12 Nov 2019

Affected Packages:

qemu

Vulnerable:

Yes

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