Debian Security Advisory DSA Xen Multiple Vulnerabilities

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Debian security advisory DSA xen multiple vulnerabilities found, a type-1 hypervisor, providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.

It was developed by the University of Cambridge and is now being developed by the Linux Foundation with support from Intel.

The University of Cambridge Computer Laboratory developed the first versions of Xen.

The Xen Project community develops and maintains Xen Project as free and open-source software, subject to the requirements of the GNU General Public License (GPL), version 2.

Xen Project is currently available for the IA-32, x86-64 and ARM instruction sets.

Debian security advisory DSA Xen.

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 Debian 10 "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.

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