ESB-2018.1608 - [Debian] xen: Access privileged data - Existing account 2018-05-28

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1608
                            xen security update
                                28 May 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           xen
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-3639  

Reference:         ASB-2018.0121
                   ESB-2018.1575
                   ESB-2018.1553
                   ESB-2018.1549

Original Bulletin: 
   http://www.debian.org/security/2018/dsa-4210

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Debian Security Advisory DSA-4210-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
May 25, 2018                          https://www.debian.org/security/faq
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Package        : xen
CVE ID         : CVE-2018-3639

This update provides mitigations for the Spectre v4 variant in x86-based
micro processors. On Intel CPUs this requires updated microcode which
is currently not released publicly (but your hardware vendor may have
issued an update). For servers with AMD CPUs no microcode update is
needed, please refer to https://xenbits.xen.org/xsa/advisory-263.html
for further information.

For the stable distribution (stretch), this problem has been fixed in
version 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7.

We recommend that you upgrade your xen packages.

For the detailed security status of xen please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/xen

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@lists.debian.org
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