Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-3657-1: Linux kernel (Raspberry Pi 2) vulnerabilities

22 May 2018

Several security issues were fixed in the Linux kernel.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

It was discovered that the netlink subsystem in the Linux kernel did not
properly restrict observations of netlink messages to the appropriate net
namespace. A local attacker could use this to expose sensitive information
(kernel netlink traffic). (CVE-2017-17449)

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 Device Mapper
component of the Linux kernel. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-18203)

It was discovered that an infinite loop could occur in the madvise(2)
implementation in the Linux kernel in certain circumstances. A local
attacker could use this to cause a denial of service (system hang).
(CVE-2017-18208)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS
implementation in the Linux kernel. A remote attacker controlling a
malicious NCPFS server could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2018-8822)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 17.10

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

Related notices

  • USN-3653-1: linux, linux-image-generic, linux-image-lowlatency, linux-image-4.13.0-43-generic, linux-image-4.13.0-43-generic-lpae, linux-image-4.13.0-43-lowlatency, linux-image-generic-lpae
  • USN-3655-1: linux-image-3.13.0-149-generic-lpae, linux-image-3.13.0-149-powerpc64-emb, linux-image-3.13.0-149-powerpc-e500mc, linux, linux-image-3.13.0-149-powerpc64-smp, linux-image-3.13.0-149-lowlatency, linux-image-3.13.0-149-generic, linux-image-3.13.0-149-powerpc-smp, linux-image-extra-3.13.0-149-generic, linux-image-3.13.0-149-powerpc-e500
  • USN-3619-2: linux-image-4.4.0-119-powerpc-smp, linux-image-4.4.0-1016-aws, linux-aws, linux-image-4.4.0-119-generic-lpae, linux-image-4.4.0-119-powerpc64-emb, linux-image-4.4.0-119-lowlatency, linux-lts-xenial, linux-image-4.4.0-119-powerpc64-smp, linux-image-4.4.0-119-generic, linux-image-4.4.0-119-powerpc-e500mc, linux-image-extra-4.4.0-119-generic
  • USN-3619-1: linux-image-4.4.0-119-powerpc-smp, linux-image-4.4.0-1086-raspi2, linux-kvm, linux, linux-aws, linux-image-4.4.0-1020-kvm, linux-image-4.4.0-119-generic-lpae, linux-image-4.4.0-119-lowlatency, linux-image-4.4.0-119-powerpc64-emb, linux-image-4.4.0-1054-aws, linux-image-4.4.0-1088-snapdragon, linux-image-4.4.0-119-powerpc64-smp, linux-image-4.4.0-119-generic, linux-snapdragon, linux-raspi2, linux-image-4.4.0-119-powerpc-e500mc, linux-image-extra-4.4.0-119-generic
  • USN-3653-2: linux-image-4.13.0-1017-gcp, linux-hwe, linux-image-extra-4.13.0-1018-azure, linux-image-4.13.0-1018-azure, linux-image-4.13.0-43-generic, linux-azure, linux-image-extra-4.13.0-43-generic, linux-gcp, linux-oem, linux-image-4.13.0-1028-oem, linux-image-4.13.0-43-generic-lpae, linux-image-4.13.0-43-lowlatency, linux-image-extra-4.13.0-1017-gcp
  • USN-3655-2: linux-image-3.13.0-149-generic-lpae, linux-image-generic-lts-trusty, linux-image-3.13.0-149-generic, linux-lts-trusty, linux-image-generic-lpae-lts-trusty
  • USN-3654-2: linux-aws, linux-image-4.4.0-127-powerpc64-emb, linux-lts-xenial, linux-image-4.4.0-127-generic, linux-image-4.4.0-127-generic-lpae, linux-image-4.4.0-127-powerpc-smp, linux-image-extra-4.4.0-127-generic, linux-image-4.4.0-127-powerpc64-smp, linux-image-4.4.0-127-powerpc-e500mc, linux-image-4.4.0-127-lowlatency, linux-image-4.4.0-1022-aws
  • USN-3654-1: linux, linux-aws, linux-image-4.4.0-127-powerpc64-emb, linux-image-4.4.0-127-generic, linux-image-4.4.0-127-generic-lpae, linux-image-4.4.0-127-powerpc-smp, linux-image-extra-4.4.0-127-generic, linux-image-4.4.0-127-powerpc64-smp, linux-image-4.4.0-127-powerpc-e500mc, linux-image-4.4.0-1026-kvm, linux-kvm, linux-image-4.4.0-1060-aws, linux-image-4.4.0-127-lowlatency
  • USN-3656-1: linux-snapdragon, linux-raspi2, linux-image-4.4.0-1093-snapdragon, linux-image-4.4.0-1090-raspi2

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading