[IT-SecNots] [SECURITY] [DSA 4566-1] qemu security update

[Salvatore Bonaccorso <carnil AT debian.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4566-1                   security AT debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 12, 2019                     https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : qemu
Debian Bug     : 944623

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

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce AT lists.debian.org
-----BEGIN PGP SIGNATURE-----
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=408l
-----END PGP SIGNATURE-----