Updated Xen packages has been released for Debian GNU/Linux 9

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Debian Security Advisory DSA-4201-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
May 15, 2018 https://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2018-8897 CVE-2018-10471 CVE-2018-10472 CVE-2018-10981
CVE-2018-10982

Multiple vulnerabilities have been discovered in the Xen hypervisor:

CVE-2018-8897

Andy Lutomirski and Nick Peterson discovered that incorrect handling
of debug exceptions could result in privilege escalation.

CVE-2018-10471

An error was discovered in the mitigations against Meltdown which
could result in denial of service.

CVE-2018-10472

Anthony Perard discovered that incorrect parsing of CDROM images
can result in information disclosure.

CVE-2018-10981

Jan Beulich discovered that malformed device models could result
in denial of service.

CVE-2018-10982

Roger Pau Monne discovered that incorrect handling of high precision
event timers could result in denial of service and potentially
privilege escalation.

For the stable distribution (stretch), these problems have been fixed in
version 4.8.3+comet2+shim4.10.0+comet3-1+deb9u6.

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/

  Xen Security Update for Debian 9