exploit the possibilities

Ubuntu Security Notice USN-3847-2

Ubuntu Security Notice USN-3847-2
Posted Dec 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3847-2 - USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710
MD5 | b0c6ce592d43ca8552efd6262de2cbbb

Ubuntu Security Notice USN-3847-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3847-2
December 20, 2018

linux-hwe, linux-aws-hwe, linux-azure, linux-gcp vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu
16.04 LTS.

It was discovered that a race condition existed in the raw MIDI driver for
the Linux kernel, leading to a double free vulnerability. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2018-10902)

It was discovered that an integer overrun vulnerability existed in the
POSIX timers implementation in the Linux kernel. A local attacker could use
this to cause a denial of service. (CVE-2018-12896)

Noam Rathaus discovered that a use-after-free vulnerability existed in the
Infiniband implementation in the Linux kernel. An attacker could use this
to cause a denial of service (system crash). (CVE-2018-14734)

It was discovered that the YUREX USB device driver for the Linux kernel did
not properly restrict user space reads or writes. A physically proximate
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-16276)

It was discovered that the BPF verifier in the Linux kernel did not
correctly compute numeric bounds in some situations. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2018-18445)

Kanda Motohiro discovered that writing extended attributes to an XFS file
system in the Linux kernel in certain situations could cause an error
condition to occur. A local attacker could use this to cause a denial of
service. (CVE-2018-18690)

It was discovered that an integer overflow vulnerability existed in the
CDROM driver of the Linux kernel. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2018-18710)

Update instructions:

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

Ubuntu 16.04 LTS:
linux-image-4.15.0-1026-gcp 4.15.0-1026.27~16.04.1
linux-image-4.15.0-1031-aws 4.15.0-1031.33~16.04.1
linux-image-4.15.0-1036-azure 4.15.0-1036.38~16.04.1
linux-image-4.15.0-43-generic 4.15.0-43.46~16.04.1
linux-image-4.15.0-43-generic-lpae 4.15.0-43.46~16.04.1
linux-image-4.15.0-43-lowlatency 4.15.0-43.46~16.04.1
linux-image-aws-hwe 4.15.0.1031.32
linux-image-azure 4.15.0.1036.41
linux-image-gcp 4.15.0.1026.40
linux-image-generic-hwe-16.04 4.15.0.43.64
linux-image-generic-lpae-hwe-16.04 4.15.0.43.64
linux-image-gke 4.15.0.1026.40
linux-image-lowlatency-hwe-16.04 4.15.0.43.64

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
https://usn.ubuntu.com/usn/usn-3847-2
https://usn.ubuntu.com/usn/usn-3847-1
CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276,
CVE-2018-18445, CVE-2018-18690, CVE-2018-18710

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1031.33~16.04.1
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1036.38~16.04.1
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1026.27~16.04.1
https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-43.46~16.04.1

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

February 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Feb 1st
    22 Files
  • 2
    Feb 2nd
    9 Files
  • 3
    Feb 3rd
    2 Files
  • 4
    Feb 4th
    15 Files
  • 5
    Feb 5th
    50 Files
  • 6
    Feb 6th
    24 Files
  • 7
    Feb 7th
    15 Files
  • 8
    Feb 8th
    6 Files
  • 9
    Feb 9th
    1 Files
  • 10
    Feb 10th
    1 Files
  • 11
    Feb 11th
    22 Files
  • 12
    Feb 12th
    25 Files
  • 13
    Feb 13th
    16 Files
  • 14
    Feb 14th
    32 Files
  • 15
    Feb 15th
    15 Files
  • 16
    Feb 16th
    10 Files
  • 17
    Feb 17th
    0 Files
  • 18
    Feb 18th
    0 Files
  • 19
    Feb 19th
    0 Files
  • 20
    Feb 20th
    0 Files
  • 21
    Feb 21st
    0 Files
  • 22
    Feb 22nd
    0 Files
  • 23
    Feb 23rd
    0 Files
  • 24
    Feb 24th
    0 Files
  • 25
    Feb 25th
    0 Files
  • 26
    Feb 26th
    0 Files
  • 27
    Feb 27th
    0 Files
  • 28
    Feb 28th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close