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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2135
                            xen security update
                               16 June 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           xen
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Denial of Service        -- Existing Account
                   Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-28692 CVE-2021-28690 CVE-2021-26313
                   CVE-2021-0089  

Reference:         ESB-2021.2086
                   ESB-2021.2043
                   ESB-2021.2042

Original Bulletin: 
   http://www.debian.org/security/2021/dsa-4931

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Debian Security Advisory DSA-4931-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
June 15, 2021                         https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : xen
CVE ID         : CVE-2021-0089 CVE-2021-26313 CVE-2021-28690 CVE-2021-28692

Multiple vulnerabilities have been discovered in the Xen hypervisor,
which could result in denial of service or information leaks.

For the stable distribution (buster), these problems have been fixed in
version 4.11.4+107-gef32c7afa2-1.

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: debian-security-announce@lists.debian.org
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===========================================================================
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===========================================================================
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