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Debian Security Advisory 4369-1

Debian Security Advisory 4369-1
Posted Jan 15, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4369-1 - Multiple vulnerabilities have been discovered in the Xen hypervisor.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2018-19961, CVE-2018-19962, CVE-2018-19965, CVE-2018-19966, CVE-2018-19967
MD5 | ab9b9c1cef656cea30c34fbb287babeb

Debian Security Advisory 4369-1

Change Mirror Download
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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
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