Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2020.0153
xen security update
16 January 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: Debian
Operating System: Debian GNU/Linux 9
Debian GNU/Linux 10
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-19583 CVE-2019-19582 CVE-2019-19581
CVE-2019-19580 CVE-2019-19579 CVE-2019-19578
CVE-2019-19577 CVE-2019-18425 CVE-2019-18424
CVE-2019-18423 CVE-2019-18422 CVE-2019-18421
CVE-2019-18420 CVE-2019-17350 CVE-2019-17349
CVE-2019-17348 CVE-2019-17347 CVE-2019-17346
CVE-2019-17345 CVE-2019-17344 CVE-2019-17343
CVE-2019-17342 CVE-2019-17341 CVE-2019-17340
CVE-2019-11135 CVE-2019-11091 CVE-2018-12207
CVE-2018-12130 CVE-2018-12127 CVE-2018-12126
Reference: ASB-2019.0330
ASB-2019.0322
Original Bulletin:
http://www.debian.org/security/2020/dsa-4602
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Debian Security Advisory DSA-4602-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
January 13, 2020 https://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2019-17349 CVE-2019-17350 CVE-2019-18420 CVE-2019-18421
CVE-2019-18422 CVE-2019-18423 CVE-2019-18424 CVE-2019-18425
CVE-2019-19577 CVE-2019-19578 CVE-2019-19579 CVE-2019-19580
CVE-2019-19581 CVE-2019-19582 CVE-2019-19583 CVE-2018-12207
CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091
CVE-2019-11135 CVE-2019-17348 CVE-2019-17347 CVE-2019-17346
CVE-2019-17345 CVE-2019-17344 CVE-2019-17343 CVE-2019-17342
CVE-2019-17341 CVE-2019-17340
Multiple vulnerabilities have been discovered in the Xen hypervisor, which
could result in denial of service, guest-to-host privilege escalation or
information leaks.
In addition this update provides mitigations for the "TSX Asynchronous Abort"
speculative side channel attack. For additional information please refer to
https://xenbits.xen.org/xsa/advisory-305.html
For the oldstable distribution (stretch), these problems have been fixed
in version 4.8.5.final+shim4.10.4-1+deb9u12. Note that this will be the
last security update for Xen in the oldstable distribution; upstream
support for the 4.8.x branch ended by the end of December 2019. If you
rely on security support for your Xen installation an update to the
stable distribution (buster) is recommended.
For the stable distribution (buster), these problems have been fixed in
version 4.11.3+24-g14b62ab3e5-1~deb10u1.
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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