USN-3656-1: Linux kernel (Raspberry Pi 2, Snapdragon) vulnerabilities

Releases

• Ubuntu 16.04 ESM

Packages

• 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 chains. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-1065)

It was discovered that the netfilter subsystem of the Linux kernel did not
properly validate ebtables offsets. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-1068)

It was discovered that a null pointer dereference vulnerability existed in
the DCCP protocol implementation in the Linux kernel. A local attacker
could use this to cause a denial of service (system crash). (CVE-2018-1130)

It was discovered that the SCTP Protocol implementation in the Linux kernel
did not properly validate userspace provided payload lengths in some
situations. A local attacker could use this to cause a denial of service
(system crash). (CVE-2018-5803)

It was discovered that a double free error existed in the block layer
subsystem of the Linux kernel when setting up a request queue. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-7480)

It was discovered that a memory leak existed in the SAS driver subsystem of
the Linux kernel. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2018-7757)

It was discovered that a race condition existed in the x86 machine check
handler in the Linux kernel. A local privileged attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-7995)

Eyal Itkin discovered that the USB displaylink video adapter driver in the
Linux kernel did not properly validate mmap offsets sent from userspace. A
local attacker could use this to expose sensitive information (kernel
memory) or possibly execute arbitrary code. (CVE-2018-8781)

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 16.04

• linux-image-4.4.0-1090-raspi2 - 4.4.0-1090.98
• linux-image-4.4.0-1093-snapdragon - 4.4.0-1093.98

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

• 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

Related notices

• USN-3653-1: linux-image-generic, linux-image-4.13.0-43-generic, linux-image-4.13.0-43-generic-lpae, linux-image-generic-lpae, linux, linux-image-4.13.0-43-lowlatency, linux-image-lowlatency
• USN-3657-1: linux-image-raspi2, linux-raspi2, linux-image-4.13.0-1020-raspi2
• USN-3654-2: linux-aws, linux-image-4.4.0-127-powerpc-e500mc, linux-image-4.4.0-127-generic, linux-image-extra-4.4.0-127-generic, linux-lts-xenial, linux-image-4.4.0-127-powerpc-smp, linux-image-4.4.0-127-generic-lpae, linux-image-4.4.0-127-powerpc64-smp, linux-image-4.4.0-127-lowlatency, linux-image-4.4.0-127-powerpc64-emb, linux-image-4.4.0-1022-aws
• USN-3654-1: linux-aws, linux-image-4.4.0-127-powerpc-e500mc, linux-image-4.4.0-1026-kvm, linux-image-4.4.0-127-generic, linux, linux-image-extra-4.4.0-127-generic, linux-kvm, linux-image-4.4.0-127-powerpc-smp, linux-image-4.4.0-127-generic-lpae, linux-image-4.4.0-127-powerpc64-smp, linux-image-4.4.0-127-lowlatency, linux-image-4.4.0-127-powerpc64-emb, linux-image-4.4.0-1060-aws
• USN-3653-2: linux-image-extra-4.13.0-1018-azure, linux-image-4.13.0-43-generic, linux-image-4.13.0-43-generic-lpae, linux-oem, linux-azure, linux-image-extra-4.13.0-43-generic, linux-image-4.13.0-1018-azure, linux-image-4.13.0-43-lowlatency, linux-image-4.13.0-1017-gcp, linux-gcp, linux-image-4.13.0-1028-oem, linux-image-extra-4.13.0-1017-gcp, linux-hwe
• USN-3674-2: linux-image-generic-lts-trusty, linux-image-3.13.0-151-generic-lpae, linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-151-generic, linux-lts-trusty
• USN-3674-1: linux-image-3.13.0-151-powerpc-e500, linux-image-3.13.0-151-powerpc-e500mc, linux, linux-image-3.13.0-151-powerpc64-smp, linux-image-3.13.0-151-powerpc-smp, linux-image-3.13.0-151-generic-lpae, linux-image-3.13.0-151-powerpc64-emb, linux-image-3.13.0-151-generic, linux-image-extra-3.13.0-151-generic, linux-image-3.13.0-151-lowlatency
• USN-3677-1: linux-image-generic, linux-image-4.13.0-45-generic-lpae, linux-image-generic-lpae, linux, linux-image-4.13.0-45-lowlatency, linux-image-4.13.0-45-generic, linux-raspi2, linux-image-raspi2, linux-image-lowlatency, linux-image-4.13.0-1022-raspi2
• USN-3677-2: linux-oem, linux-image-4.13.0-45-generic-lpae, linux-image-4.13.0-1030-oem, linux-image-4.13.0-45-generic, linux-image-4.13.0-45-lowlatency, linux-gcp, linux-image-extra-4.13.0-1019-gcp, linux-hwe, linux-image-extra-4.13.0-45-generic, linux-image-4.13.0-1019-gcp
• USN-3698-2: linux-image-3.13.0-153-generic, linux-image-generic-lts-trusty, linux-image-3.13.0-153-generic-lpae, linux-image-generic-lpae-lts-trusty, linux-lts-trusty
• USN-3697-1: linux-image-generic, linux-image-4.13.0-46-generic, linux-image-generic-lpae, linux, linux-image-4.13.0-46-generic-lpae, linux-image-4.13.0-46-lowlatency, linux-raspi2, linux-image-lowlatency, linux-image-4.13.0-1023-raspi2, linux-image-raspi2
• USN-3698-1: linux-image-3.13.0-153-generic, linux-image-3.13.0-153-powerpc64-smp, linux-image-3.13.0-153-powerpc-e500mc, linux, linux-image-3.13.0-153-generic-lpae, linux-image-extra-3.13.0-153-generic, linux-image-3.13.0-153-powerpc-e500, linux-image-3.13.0-153-lowlatency, linux-image-3.13.0-153-powerpc-smp, linux-image-3.13.0-153-powerpc64-emb
• USN-3697-2: linux-oem, linux-image-4.13.0-1031-oem
• USN-3655-1: linux-image-3.13.0-149-powerpc-e500, linux-image-3.13.0-149-powerpc-e500mc, linux, linux-image-3.13.0-149-generic-lpae, linux-image-extra-3.13.0-149-generic, linux-image-3.13.0-149-generic, linux-image-3.13.0-149-powerpc64-smp, linux-image-3.13.0-149-powerpc-smp, linux-image-3.13.0-149-lowlatency, linux-image-3.13.0-149-powerpc64-emb
• USN-3655-2: linux-image-generic-lts-trusty, linux-image-3.13.0-149-generic-lpae, linux-image-3.13.0-149-generic, linux-image-generic-lpae-lts-trusty, linux-lts-trusty