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

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4369-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
January 14, 2019                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : xen
CVE ID         : CVE-2018-19961 CVE-2018-19962 CVE-2018-19965
                 CVE-2018-19966 CVE-2018-19967

Multiple vulnerabilities have been discovered in the Xen hypervisor:

CVE-2018-19961 / CVE-2018-19962

    Paul Durrant discovered that incorrect TLB handling could result in
    denial of service, privilege escalation or information leaks.

CVE-2018-19965

    Matthew Daley discovered that incorrect handling of the INVPCID
    instruction could result in denial of service by PV guests.

CVE-2018-19966

    It was discovered that a regression in the fix to address
    CVE-2017-15595 could result in denial of service, privilege
    escalation or information leaks by a PV guest.

CVE-2018-19967

    It was discovered that an error in some Intel CPUs could result in
    denial of service by a guest instance.

For the stable distribution (stretch), these problems have been fixed in
version 4.8.5+shim4.10.2+xsa282-1+deb9u11.

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
-----BEGIN PGP SIGNATURE-----
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JWnH
-----END PGP SIGNATURE-----