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Debian Security Advisory DSA-5184-1                   [email protected]
https://www.debian.org/security/                       Moritz Muehlenhoff
July 15, 2022                         https://www.debian.org/security/faq
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Package        : xen
CVE ID         : CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-23816 
                 CVE-2022-23825 CVE-2022-26362 CVE-2022-26363 CVE-2022-26364 
                 CVE-2022-29900

Multiple vulnerabilities have been discovered in the Xen hypervisor, which
could result in privilege escalation. In addition this updates provides
mitigations for the "Retbleed" speculative execution attack and the
"MMIO stale data" vulnerabilities.

For additional information please refer to the following pages:
https://xenbits.xen.org/xsa/advisory-404.html
https://xenbits.xen.org/xsa/advisory-407.html

For the stable distribution (bullseye), these problems have been fixed in
version 4.14.5+24-g87d90d511c-1.

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: [email protected]