Debian Security Advisory

DSA-4812-1 xen -- security update

Date Reported:

15 Dec 2020

Affected Packages:

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2020-29479, CVE-2020-29480, CVE-2020-29481, CVE-2020-29482, CVE-2020-29483, CVE-2020-29484, CVE-2020-29485, CVE-2020-29486, CVE-2020-29566, CVE-2020-29570, CVE-2020-29571.

More information:

Multiple vulnerabilities have been discovered in the Xen hypervisor:

Several security issues affecting Xenstore could result in cross domain access (denial of service, information leaks or privilege escalation) or denial of service against xenstored.

Additional vulnerabilities could result in guest-to-host denial of service.

For the stable distribution (buster), these problems have been fixed in version 4.11.4+57-g41a822c392-2.

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