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

22 May 2018

Several security issues were fixed in the Linux kernel.

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)

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.

Related notices

  • USN-3653-2: linux-image-4.13.0-43-generic, linux-oem, linux-gcp, linux-image-4.13.0-43-generic-lpae, linux-image-lowlatency-hwe-16.04, linux-image-4.13.0-43-lowlatency, linux-image-gcp, linux-image-4.13.0-1017-gcp, linux-image-generic-lpae-hwe-16.04, linux-azure, linux-image-4.13.0-1028-oem, linux-image-gke, linux-hwe, linux-image-4.13.0-1018-azure, linux-image-oem, linux-image-azure, linux-image-generic-hwe-16.04
  • USN-3619-2: linux-image-4.4.0-119-lowlatency, linux-image-4.4.0-119-generic, linux-image-4.4.0-119-powerpc-smp, linux-image-4.4.0-119-powerpc64-emb, linux-image-4.4.0-119-powerpc-e500mc, linux-aws, linux-image-4.4.0-1016-aws, linux-image-lowlatency-lts-xenial, linux-image-powerpc-e500mc-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-aws, linux-image-generic-lts-xenial, linux-image-generic-lpae-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-119-powerpc64-smp, linux-image-4.4.0-119-generic-lpae
  • USN-3656-1: linux-image-raspi2, linux-image-4.4.0-1090-raspi2, linux-raspi2, linux-snapdragon, linux-image-snapdragon, linux-image-4.4.0-1093-snapdragon
  • USN-3655-2: linux-image-3.13.0-149-generic, linux-lts-trusty, linux-image-generic-lpae-lts-trusty, linux-image-generic-lts-trusty, linux-image-3.13.0-149-generic-lpae
  • USN-3654-1: linux-image-4.4.0-127-powerpc-smp, linux-image-generic, linux-image-aws, linux-image-4.4.0-127-lowlatency, linux-image-powerpc64-smp, linux-image-lowlatency, linux-image-kvm, linux-aws, linux-image-4.4.0-127-powerpc-e500mc, linux-image-powerpc-e500mc, linux-image-4.4.0-1026-kvm, linux-image-4.4.0-127-generic-lpae, linux-image-powerpc-smp, linux, linux-image-powerpc64-emb, linux-image-4.4.0-127-powerpc64-emb, linux-image-generic-lpae, linux-image-4.4.0-127-powerpc64-smp, linux-image-4.4.0-127-generic, linux-image-4.4.0-1060-aws, linux-kvm
  • USN-3653-1: linux-image-4.13.0-43-generic, linux-image-lowlatency, linux-image-4.13.0-43-generic-lpae, linux-image-4.13.0-43-lowlatency, linux-image-generic-lpae, linux-image-generic, linux
  • USN-3619-1: linux-image-raspi2, linux-image-4.4.0-119-generic, linux-image-4.4.0-1086-raspi2, linux-image-generic, linux-image-aws, linux-image-powerpc64-smp, linux-image-lowlatency, linux-image-kvm, linux-aws, linux-image-powerpc-e500mc, linux-raspi2, linux-image-4.4.0-119-generic-lpae, linux-image-4.4.0-119-lowlatency, linux-image-4.4.0-119-powerpc-e500mc, linux-image-powerpc-smp, linux-image-4.4.0-1054-aws, linux-image-4.4.0-1020-kvm, linux, linux-image-4.4.0-1088-snapdragon, linux-image-powerpc64-emb, linux-image-4.4.0-119-powerpc64-smp, linux-image-4.4.0-119-powerpc-smp, linux-image-4.4.0-119-powerpc64-emb, linux-image-generic-lpae, linux-snapdragon, linux-image-snapdragon, linux-kvm
  • USN-3654-2: linux-image-4.4.0-127-generic-lpae, linux-image-4.4.0-127-powerpc-smp, linux-image-4.4.0-127-powerpc64-emb, linux-aws, linux-image-4.4.0-127-powerpc-e500mc, linux-image-4.4.0-127-powerpc64-smp, linux-image-lowlatency-lts-xenial, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-1022-aws, linux-image-4.4.0-127-generic, linux-image-powerpc64-emb-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-lts-xenial, linux-image-aws, linux-image-generic-lpae-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-127-lowlatency, linux-image-generic-lts-xenial
  • USN-3655-1: linux-image-3.13.0-149-generic, linux-image-3.13.0-149-powerpc-smp, linux-image-3.13.0-149-powerpc-e500, linux-image-3.13.0-149-powerpc64-emb, linux-image-lowlatency, linux-image-generic-lpae, linux-image-generic, linux-image-powerpc-e500mc, linux-image-powerpc-e500, linux-image-powerpc-smp, linux-image-3.13.0-149-powerpc-e500mc, linux-image-3.13.0-149-lowlatency, linux-image-3.13.0-149-powerpc64-smp, linux, linux-image-powerpc64-emb, linux-image-powerpc64-smp, linux-image-3.13.0-149-generic-lpae