Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 488
Alerts This Week
Warning Icon 1 488

Ubuntu 16.04 LTS USN-3656-1 Critical: Linux Kernel Denial of Service

ubuntu
Calendar Grey May 22, 2018
Scroller Ubuntu
Ubuntu Security Notice USN-3657-1 addresses critical vulnerabilities in the system's kernel, affecting Raspberry Pi 3 and Qualcomm Snapdragon chips.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-raspi2: Linux kernel for Raspberry Pi 2

- linux-snapdragon: Linux kernel for Snapdragon processors

Details:

Tuba Yavuz discovered that a double-free error existed in the USBTV007

driver of the Linux kernel. A local attacker could use this to cause a

denial of service (system crash) or possibly execute arbitrary code.

(CVE-2017-17975)

It was discovered that a race condition existed in the F2FS implementation

in the Linux kernel. A local attacker could use this to cause a denial of

service (system crash). (CVE-2017-18193)

It was discovered that a buffer overflow existed in the Hisilicon HNS

Ethernet Device driver in the Linux kernel. A local attacker could use this

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

code. (CVE-2017-18222)

It was discovered that the netfilter subsystem in the Linux kernel did not

validate that rules containing jumps contained user-defined c...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu system crash linux-raspi2 linux-snapdragon

Update Instructions

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

Ubuntu 16.04 LTS:
  linux-image-4.4.0-1090-raspi2   4.4.0-1090.98
  linux-image-4.4.0-1093-snapdragon  4.4.0-1093.98
  linux-image-raspi2              4.4.0.1090.90
  linux-image-snapdragon          4.4.0.1093.85

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-3656-1

CVE-2017-17975, CVE-2017-18193, CVE-2017-18222, CVE-2018-1065,

CVE-2018-1068, CVE-2018-1130, CVE-2018-5803, CVE-2018-7480,

CVE-2018-7757, CVE-2018-7995, CVE-2018-8781, CVE-2018-8822

Severity
critical
Lowest
Low
Medium
High
Critical

May 22, 2018

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu system crash linux-raspi2 linux-snapdragon

Package Information

https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1090.98
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1093.98

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.