USN-3419-1: Linux kernel vulnerabilities

Releases

• Ubuntu 17.04

Packages

• linux - Linux kernel
• linux-raspi2 - Linux kernel for Raspberry Pi 2

Details

It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-1000251)

It was discovered that a buffer overflow existed in the Broadcom FullMAC
WLAN 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-2017-7541)

Update instructions

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

Ubuntu 17.04

• linux-image-generic - 4.10.0.35.35
• linux-image-4.10.0-35-generic - 4.10.0-35.39
• linux-image-4.10.0-35-lowlatency - 4.10.0-35.39
• linux-image-4.10.0-35-generic-lpae - 4.10.0-35.39
• linux-image-generic-lpae - 4.10.0.35.35
• linux-image-lowlatency - 4.10.0.35.35
• linux-image-raspi2 - 4.10.0.1018.19
• linux-image-4.10.0-1018-raspi2 - 4.10.0-1018.21

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-2017-1000251
• CVE-2017-7541

Related notices

• USN-3423-1: linux, linux-image-omap, linux-image-highbank, linux-image-powerpc-smp, linux-image-3.2.0-131-generic-pae, linux-image-3.2.0-131-virtual, linux-image-generic-pae, linux-image-3.2.0-131-generic, linux-image-3.2.0-131-powerpc-smp, linux-image-powerpc64-smp, linux-image-3.2.0-131-powerpc64-smp, linux-image-3.2.0-131-highbank, linux-image-generic, linux-image-virtual, linux-image-3.2.0-131-omap
• USN-3420-1: linux, linux-image-4.4.0-96-generic-lpae, linux-image-4.4.0-96-lowlatency, linux-image-4.4.0-96-generic, linux-image-4.4.0-1074-raspi2, linux-gke, linux-image-4.4.0-96-powerpc64-emb, linux-image-4.4.0-96-powerpc64-smp, linux-image-4.4.0-1007-kvm, linux-kvm, linux-image-4.4.0-96-powerpc-smp, linux-image-extra-4.4.0-96-generic, linux-raspi2, linux-image-extra-4.4.0-1031-gke, linux-image-4.4.0-1031-gke, linux-image-4.4.0-1035-aws, linux-image-4.4.0-96-powerpc-e500mc, linux-snapdragon, linux-aws, linux-image-4.4.0-1076-snapdragon
• USN-3420-2: linux-image-4.4.0-96-powerpc-smp, linux-image-4.4.0-96-generic, linux-image-4.4.0-96-powerpc-e500mc, linux-image-extra-4.4.0-96-generic, linux-image-4.4.0-96-generic-lpae, linux-image-4.4.0-96-lowlatency, linux-image-4.4.0-96-powerpc64-emb, linux-image-4.4.0-96-powerpc64-smp, linux-lts-xenial
• USN-3419-2: linux-hwe, linux-image-4.10.0-35-generic-lpae, linux-image-4.10.0-35-generic, linux-image-extra-4.10.0-35-generic, linux-image-4.10.0-35-lowlatency
• USN-3422-2: linux-image-generic-lts-trusty, linux-image-3.13.0-132-generic-lpae, linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-132-generic, linux-lts-trusty
• USN-3422-1: linux, linux-image-3.13.0-132-generic-lpae, linux-image-3.13.0-132-powerpc-e500mc, linux-image-3.13.0-132-powerpc64-emb, linux-image-3.13.0-132-powerpc-smp, linux-image-3.13.0-132-powerpc64-smp, linux-image-3.13.0-132-lowlatency, linux-image-extra-3.13.0-132-generic, linux-image-3.13.0-132-generic, linux-image-3.13.0-132-powerpc-e500
• USN-3405-1: linux, linux-image-4.4.0-93-powerpc64-emb, linux-image-4.4.0-93-generic-lpae, linux-raspi2, linux-snapdragon, linux-image-4.4.0-1071-raspi2, linux-gke, linux-aws, linux-image-extra-4.4.0-1028-gke, linux-image-4.4.0-1028-gke, linux-image-4.4.0-93-powerpc-smp, linux-image-4.4.0-93-powerpc64-smp, linux-image-4.4.0-1032-aws, linux-image-extra-4.4.0-93-generic, linux-image-4.4.0-93-generic, linux-image-4.4.0-93-powerpc-e500mc, linux-image-4.4.0-93-lowlatency, linux-image-4.4.0-1073-snapdragon
• USN-3405-2: linux-image-4.4.0-93-powerpc64-emb, linux-image-4.4.0-93-generic-lpae, linux-image-extra-4.4.0-93-generic, linux-image-4.4.0-93-powerpc-smp, linux-image-4.4.0-93-powerpc64-smp, linux-lts-xenial, linux-image-4.4.0-93-powerpc-e500mc, linux-image-4.4.0-93-lowlatency, linux-image-4.4.0-93-generic