USN-2240-1: Linux kernel vulnerabilities
5 June 2014
Several security issues were fixed in the kernel.
Releases
Packages
- linux - Linux kernel
Details
Pinkie Pie discovered a flaw in the Linux kernel's futex subsystem. An
unprivileged local user could exploit this flaw to cause a denial of
service (system crash) or gain administrative privileges. (CVE-2014-3153)
An information leak was discovered in the netfilter subsystem of the Linux
kernel. An attacker could exploit this flaw to obtain sensitive information
from kernel memory. (CVE-2014-2568)
Sasha Levin reported a bug in the Linux kernel's virtual memory management
subsystem. An unprivileged local user could exploit this flaw to cause a
denial of service (system crash). (CVE-2014-3122)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
-
linux-image-3.13.0-29-generic
-
3.13.0-29.53
-
linux-image-3.13.0-29-generic-lpae
-
3.13.0-29.53
-
linux-image-3.13.0-29-lowlatency
-
3.13.0-29.53
-
linux-image-3.13.0-29-powerpc-e500
-
3.13.0-29.53
-
linux-image-3.13.0-29-powerpc-e500mc
-
3.13.0-29.53
-
linux-image-3.13.0-29-powerpc-smp
-
3.13.0-29.53
-
linux-image-3.13.0-29-powerpc64-emb
-
3.13.0-29.53
-
linux-image-3.13.0-29-powerpc64-smp
-
3.13.0-29.53
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.