USN-2733-1: Linux kernel (Trusty HWE) vulnerability
03 September 2015
- linux-lts-trusty - Linux hardware enablement kernel from Trusty
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.
The problem can be corrected by updating your system to the following package versions:
- linux-image-3.13.0-63-generic - 3.13.0-63.104~precise1
- linux-image-3.13.0-63-generic-lpae - 3.13.0-63.104~precise1
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.