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Ubuntu 19.04: USN-4117-1 Critical: Linux Kernel AWS Issues

ubuntu
Calendar Grey September 2, 2019
Dist Ubuntu Esm H88
Kernel patches released for Ubuntu 19.04 address multiple security flaws affecting AWS virtual machines.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

Details:

It was discovered that a heap buffer overflow existed in the Marvell

Wireless LAN device driver for the Linux kernel. An attacker could use this

to cause a denial of service (system crash) or possibly execute arbitrary

code. (CVE-2019-10126)

Amit Klein and Benny Pinkas discovered that the Linux kernel did not

sufficiently randomize IP ID values generated for connectionless networking

protocols. A remote attacker could use this to track particular Linux

devices. (CVE-2019-10638)

It was discovered that a NULL pointer dereference vulnerability existed in

the Near-field communication (NFC) implementation in the Linux kernel. A

local attacker could use this to cause a denial of service (system crash).

(CVE-2019-12984)

Jann Horn discovered a use-after-free vulnerability in the Linux kernel

when accessing LDT entries in some situation...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow system crash linux-aws

Update Instructions

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

Ubuntu 19.04:
  linux-image-5.0.0-1014-aws      5.0.0-1014.16
  linux-image-aws                 5.0.0.1014.15

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://ubuntu.com/security/notices/USN-4117-1

CVE-2019-10126, CVE-2019-10638, CVE-2019-12984, CVE-2019-13233,

CVE-2019-13272, CVE-2019-14283, CVE-2019-14284, CVE-2019-3846,

CVE-2019-3900

Severity
critical
Lowest
Low
Medium
High
Critical

September 02, 2019

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow system crash linux-aws

Package Information

https://launchpad.net/ubuntu/+source/linux-aws/5.0.0-1014.16

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