USN-3360-1: Linux kernel vulnerabilities

Published Jul 21, 2017
·
Updated

It was discovered that the Linux kernel did not properly initialize a Wake- on-Lan data structure. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2014-9900) It was discovered that the Linux kernel did not properly restrict access to /proc/iomem. A local attacker could use this to expose sensitive information. (CVE-2015-8944) It was discovered that a use-after-free vulnerability existed in the performance events and counters subsystem of the Linux kernel for ARM64. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2015-8955) It was discovered that the SCSI generic (sg) driver in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-8962) Sasha Levin discovered that a race condition existed in the performance events and counters subsystem of the Linux kernel when handling CPU unplug events. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2015-8963) Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2015-8964) It was discovered that the fcntl64() system call in the Linux kernel did not properly set memory limits when returning on 32-bit ARM processors. A local attacker could use this to gain administrative privileges. (CVE-2015-8966) It was discovered that the system call table for ARM 64-bit processors in the Linux kernel was not write-protected. An attacker could use this in conjunction with another kernel vulnerability to execute arbitrary code. (CVE-2015-8967) It was discovered that the generic SCSI block layer in the Linux kernel did not properly restrict write operations in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2016-10088) Alexander Potapenko discovered a race condition in the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-1000380) Li Qiang discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly validate some ioctl arguments. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7346) Tuomas Haanpää and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895) It was discovered that an integer underflow existed in the Edgeport USB Serial Converter device driver of the Linux kernel. An attacker with physical access could use this to expose sensitive information (kernel memory). (CVE-2017-8924) It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the Linux kernel did not properly perform reference counting. A local attacker could use this to cause a denial of service (tty exhaustion). (CVE-2017-8925) Murray McAllister discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly initialize memory. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-9605)

Affected Software

16 affected componentsFixes available
All of the following
ubuntu/linux-image-3.13.0-125-generic<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-generic-lpae<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-lowlatency<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-powerpc-e500<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-powerpc-e500mc<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-powerpc-smp<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-powerpc64-emb<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04
All of the following
ubuntu/linux-image-3.13.0-125-powerpc64-smp<3.13.0-125.174
3.13.0-125.174
Ubuntu Ubuntu=14.04

Event History

Jul 21, 2017
Advisory Published
via Ubuntu·12:00 AM

Frequently Asked Questions

1

What is the severity of USN-3360-1?

The severity of USN-3360-1 is moderate.

2

How can a local attacker exploit CVE-2014-9900?

A local attacker can exploit CVE-2014-9900 by using an improperly initialized Wake-On-Lan data structure to expose sensitive information in the kernel memory.

3

What is the remedy for USN-3360-1?

The remedy for USN-3360-1 is to upgrade to Linux kernel version 3.13.0-125.174 or higher.

4

What is the affected software for USN-3360-1?

The affected software for USN-3360-1 is Ubuntu 14.04 with Linux kernel versions 3.13.0-125.174 or lower.

5

What are the references for USN-3360-1?

The references for USN-3360-1 are CVE-2014-9900, CVE-2015-8944, and CVE-2015-8955.

Contact

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