USN-3779-1: Linux kernel vulnerabilities

Releases

• Ubuntu 12.04

Packages

• linux - Linux kernel

Details

It was discovered that an integer overflow vulnerability existed in the
Linux kernel when loading an executable to run. A local attacker could use
this to gain administrative privileges. (CVE-2018-14634)

It was discovered that a stack-based buffer overflow existed in the iSCSI
target implementation of the Linux kernel. A remote attacker could use this
to cause a denial of service (system crash). (CVE-2018-14633)

Update instructions

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

Ubuntu 12.04

• linux-image-powerpc-smp - 3.2.0.136.151
• linux-image-3.2.0-136-generic-pae - 3.2.0-136.182
• linux-image-powerpc - 3.2.0.136.151
• linux-image-3.2.0-136-powerpc64-smp - 3.2.0-136.182
• linux-image-generic - 3.2.0.136.151
• linux-image-3.2.0-136-virtual - 3.2.0-136.182
• linux-image-generic-pae - 3.2.0.136.151
• linux-image-highbank - 3.2.0.136.151
• linux-image-3.2.0-136-generic - 3.2.0-136.182
• linux-image-3.2.0-136-omap - 3.2.0-136.182
• linux-image-3.2.0-136-powerpc-smp - 3.2.0-136.182
• linux-image-powerpc64-smp - 3.2.0.136.151
• linux-image-omap - 3.2.0.136.151
• linux-image-3.2.0-136-highbank - 3.2.0-136.182

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-2018-14633
• CVE-2018-14634

Related notices

• USN-3776-1: linux-image-4.4.0-137-powerpc64-smp, linux-image-4.4.0-137-powerpc64-emb, linux-image-4.4.0-137-powerpc-smp, linux-raspi2, linux-kvm, linux-image-extra-4.4.0-137-generic, linux-image-4.4.0-137-generic-lpae, linux-image-4.4.0-137-generic, linux-image-4.4.0-137-powerpc-e500mc, linux-snapdragon, linux-image-4.4.0-137-lowlatency, linux-image-4.4.0-1035-kvm, linux-image-4.4.0-1102-snapdragon, linux, linux-image-4.4.0-1098-raspi2, linux-image-4.4.0-1069-aws, linux-aws
• USN-3776-2: linux-image-4.4.0-137-powerpc64-smp, linux-image-4.4.0-137-powerpc64-emb, linux-image-extra-4.4.0-137-generic, linux-image-4.4.0-137-generic-lpae, linux-image-4.4.0-137-generic, linux-image-4.4.0-137-powerpc-e500mc, linux-lts-xenial, linux-image-4.4.0-137-lowlatency, linux-image-4.4.0-1031-aws, linux-image-4.4.0-137-powerpc-smp, linux-aws
• USN-3777-2: linux-image-unsigned-4.15.0-1021-gcp, linux-gcp, linux-hwe, linux-image-4.15.0-36-lowlatency, linux-image-4.15.0-36-generic, linux-image-4.15.0-36-generic-lpae, linux-image-unsigned-4.15.0-36-generic, linux-image-unsigned-4.15.0-36-lowlatency
• USN-3777-1: linux-image-unsigned-4.15.0-1021-gcp, linux-gcp, linux-raspi2, linux-kvm, linux-image-4.15.0-36-snapdragon, linux-image-4.15.0-1023-kvm, linux-image-4.15.0-1024-raspi2, linux-image-4.15.0-1023-aws, linux-image-4.15.0-36-lowlatency, linux-oem, linux-image-4.15.0-36-generic, linux-image-4.15.0-36-generic-lpae, linux-image-unsigned-4.15.0-1021-oem, linux-image-unsigned-4.15.0-36-generic, linux-image-unsigned-4.15.0-36-lowlatency, linux, linux-aws
• USN-3777-3: linux-image-unsigned-4.15.0-1025-azure, linux-azure
• USN-3775-2: linux-image-3.13.0-160-generic, linux-image-generic-lts-trusty, linux-image-generic-lpae-lts-trusty, linux-lts-trusty, linux-image-3.13.0-160-generic-lpae
• USN-3775-1: linux-image-3.13.0-160-powerpc-e500, linux-image-3.13.0-160-generic, linux-image-3.13.0-160-powerpc64-emb, linux-image-3.13.0-160-lowlatency, linux-image-3.13.0-160-powerpc-e500mc, linux-image-3.13.0-160-powerpc-smp, linux-image-extra-3.13.0-160-generic, linux-image-3.13.0-160-generic-lpae, linux, linux-image-3.13.0-160-powerpc64-smp