USN-2660-1: Linux kernel vulnerability
07 July 2015
- linux - Linux kernel
A race condition was discovered in the Linux kernel's file_handle size
verification. A local user could exploit this flaw to read potentially
sensative memory locations.
The problem can be corrected by updating your system to the following package versions:
- linux-image-3.2.0-87-generic - 3.2.0-87.125
- linux-image-3.2.0-87-generic-pae - 3.2.0-87.125
- linux-image-3.2.0-87-highbank - 3.2.0-87.125
- linux-image-3.2.0-87-omap - 3.2.0-87.125
- linux-image-3.2.0-87-powerpc-smp - 3.2.0-87.125
- linux-image-3.2.0-87-powerpc64-smp - 3.2.0-87.125
- linux-image-3.2.0-87-virtual - 3.2.0-87.125
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.