Updated Xen packages are available for Debian GNU/Linux 7 LTS
Package : xenXen Security Update for Debian 7 LTS
Version : 4.1.6.lts1-13
CVE ID : CVE-2018-7540 CVE-2018-7541
Multiple vulnerabilities have been discovered in the Xen hypervisor, which
could result in denial of service, informations leaks or privilege
escalation.
For Debian 7 "Wheezy", these problems have been fixed in version
4.1.6.lts1-13.
We recommend that you upgrade your xen packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS