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    Debian: DSA-4566-1: qemu security update

    Date 12 Nov 2019
    572
    Posted By LinuxSecurity Advisories
    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).
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4566-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    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: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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