USN-2750-1: Linux kernel (Utopic HWE) vulnerability

Releases

• Ubuntu 14.04 ESM

Packages

• linux-lts-utopic - Linux hardware enablement kernel from Utopic

Details

It was discovered that an integer overflow error existed in the SCSI
generic (sg) driver in the Linux kernel. A local attacker with write
permission to a SCSI generic device could use this to cause a denial of
service (system crash) or potentially escalate their privileges.

Update instructions

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

Ubuntu 14.04

• linux-image-3.16.0-50-generic - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-generic-lpae - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-lowlatency - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-powerpc-e500mc - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-powerpc-smp - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-powerpc64-emb - 3.16.0-50.66~14.04.1
• linux-image-3.16.0-50-powerpc64-smp - 3.16.0-50.66~14.04.1

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

• CVE-2015-5707

Related notices

• USN-2734-1: linux, linux-image-3.13.0-63-powerpc64-emb, linux-image-3.13.0-63-powerpc64-smp, linux-image-3.13.0-63-generic-lpae, linux-image-extra-3.13.0-63-generic, linux-image-3.13.0-63-lowlatency, linux-image-3.13.0-63-powerpc-smp, linux-image-3.13.0-63-powerpc-e500, linux-image-3.13.0-63-generic, linux-image-3.13.0-63-powerpc-e500mc
• USN-2733-1: linux-image-3.13.0-63-generic, linux-image-3.13.0-63-generic-lpae, linux-lts-trusty
• USN-2759-1: linux, linux-image-3.2.0-91-omap, linux-image-3.2.0-91-generic, linux-image-3.2.0-91-powerpc64-smp, linux-image-3.2.0-91-generic-pae, linux-image-3.2.0-91-highbank, linux-image-3.2.0-91-powerpc-smp, linux-image-3.2.0-91-virtual
• USN-2760-1: linux-image-3.2.0-1471-omap4, linux-ti-omap4
• USN-2737-1: linux-image-3.19.0-28-generic, linux-lts-vivid, linux-image-extra-3.19.0-28-generic, linux-image-3.19.0-28-powerpc64-smp, linux-image-3.19.0-28-lowlatency, linux-image-3.19.0-28-generic-lpae, linux-image-3.19.0-28-powerpc64-emb, linux-image-3.19.0-28-powerpc-smp, linux-image-3.19.0-28-powerpc-e500mc
• USN-2738-1: linux, linux-image-3.19.0-28-generic, linux-image-3.19.0-28-powerpc64-smp, linux-image-3.19.0-28-lowlatency, linux-image-3.19.0-28-generic-lpae, linux-image-3.19.0-28-powerpc64-emb, linux-image-3.19.0-28-powerpc-smp, linux-image-3.19.0-28-powerpc-e500mc