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Ubuntu 14.04 ESM: USN-3985-2 Critical: Libvirt Memory Exposure

ubuntu
Calendar Grey May 16, 2019
Dist Ubuntu Esm H88
Several vulnerabilities within the libvirt framework have revealed confidential information on Ubuntu platforms. It is advised to apply updates promptly for enhanced security.
Several security issues were addressed in libvirt.

Summary

Several security issues were addressed in libvirt.

Software Description:

- libvirt: Libvirt virtualization toolkit

Details:

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan

Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa

Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,

Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss

discovered that memory previously stored in microarchitectural fill buffers

of an Intel CPU core may be exposed to a malicious process that is

executing on the same CPU core. A local attacker could use this to expose

sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan

van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh

Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory

previously stored in microarchitectural load ports of an Intel CPU core may

be exposed to...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu sensitive information memory exposure libvirt

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 ESM:
  libvirt-bin                     1.2.2-0ubuntu13.1.28
  libvirt0                        1.2.2-0ubuntu13.1.28

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3985-2

https://ubuntu.com/security/notices/USN-3985-1

CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091,

https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/MDS

Severity
critical
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Critical

May 16, 2019

Topics%20covered

Topics Covered

security advisory Ubuntu sensitive information memory exposure libvirt

Package Information

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