USN-3983-1: Linux kernel vulnerabilities

Published May 14, 2019
·
Updated

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 a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store 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-2018-12126) Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural 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-2019-11091)

Affected Software

34 affected componentsFixes available
All of the following
ubuntu/linux-image-powerpc-e500mc<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-lowlatency<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-powerpc64-emb<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-virtual<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-powerpc-e500<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-powerpc64-emb<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-powerpc-e500mc<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-powerpc-e500<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-powerpc-smp<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-generic<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-powerpc-smp<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-generic<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-generic-lpae<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-generic-lpae<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-powerpc64-smp<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-lowlatency<3.13.0.170.181
3.13.0.170.181
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-170-powerpc64-smp<3.13.0-170.220
3.13.0-170.220
Ubuntu Ubuntu=14.04

Event History

May 14, 2019
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What are the vulnerabilities addressed in USN-3983-1?

USN-3983-1 addresses the following vulnerabilities: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130.

2

How can I fix the vulnerabilities in USN-3983-1?

To fix the vulnerabilities in USN-3983-1, update your Linux kernel to a version that includes the necessary patches.

3

Are there any known exploits for the vulnerabilities in USN-3983-1?

There are no known exploits for the vulnerabilities addressed in USN-3983-1 at this time.

4

What is the severity of the vulnerabilities in USN-3983-1?

The severity of the vulnerabilities in USN-3983-1 depends on the individual CVE. Please refer to the CVE details for more information.

5

Where can I find more information about the vulnerabilities in USN-3983-1?

You can find more information about the vulnerabilities addressed in USN-3983-1 on the Ubuntu website using the provided references: [CVE-2018-12126](https://ubuntu.com/security/CVE-2018-12126), [CVE-2018-12127](https://ubuntu.com/security/CVE-2018-12127), [CVE-2018-12130](https://ubuntu.com/security/CVE-2018-12130).

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