USN-2444-1: Linux kernel (OMAP4) vulnerabilities

12 December 2014

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

Rabin Vincent, Robert Swiecki, Russell King discovered that the ftrace
subsystem of the Linux kernel does not properly handle private syscall
numbers. A local user could exploit this flaw to cause a denial of service
(OOPS). (CVE-2014-7826)

Rabin Vincent, Robert Swiecki, Russell Kinglaw discovered a flaw in how the
perf subsystem of the Linux kernel handles private systecall numbers. A
local user could exploit this to cause a denial of service (OOPS) or bypass
ASLR protections via a crafted application. (CVE-2014-7825)

A null pointer dereference flaw was discovered in the the Linux kernel's
SCTP implementation when ASCONF is used. A remote attacker could exploit
this flaw to cause a denial of service (system crash) via a malformed INIT
chunk. (CVE-2014-7841)

A stack buffer overflow was discovered in the ioctl command handling for
the Technotrend/Hauppauge USB DEC devices driver. A local user could
exploit this flaw to cause a denial of service (system crash) or possibly
gain privileges. (CVE-2014-8884)

Update instructions

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

Ubuntu 12.04

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.

Related notices

  • USN-2445-1: linux-image-3.13.0-43-generic, linux-lts-trusty, linux-image-3.13.0-43-generic-lpae
  • USN-2441-1: linux-image-2.6.32-70-generic-pae, linux-image-2.6.32-70-preempt, linux-image-2.6.32-70-powerpc64-smp, linux-image-2.6.32-70-virtual, linux-image-2.6.32-70-versatile, linux-image-2.6.32-70-sparc64-smp, linux-image-2.6.32-70-generic, linux-image-2.6.32-70-386, linux-image-2.6.32-70-powerpc, linux, linux-image-2.6.32-70-sparc64, linux-image-2.6.32-70-lpia, linux-image-2.6.32-70-server, linux-image-2.6.32-70-powerpc-smp, linux-image-2.6.32-70-ia64
  • USN-2442-1: linux-ec2, linux-image-2.6.32-374-ec2
  • USN-2466-1: linux-image-3.13.0-44-powerpc64-smp, linux-image-3.13.0-44-powerpc-smp, linux, linux-image-3.13.0-44-generic-lpae, linux-image-3.13.0-44-lowlatency, linux-image-3.13.0-44-powerpc-e500mc, linux-image-3.13.0-44-powerpc64-emb, linux-image-3.13.0-44-powerpc-e500, linux-image-3.13.0-44-generic
  • USN-2448-1: linux-image-3.16.0-28-powerpc-e500mc, linux-image-3.16.0-28-powerpc64-smp, linux-image-3.16.0-28-generic-lpae, linux, linux-image-3.16.0-28-lowlatency, linux-image-3.16.0-28-powerpc64-emb, linux-image-3.16.0-28-generic, linux-image-3.16.0-28-powerpc-smp
  • USN-2465-1: linux-image-3.13.0-44-generic-lpae, linux-lts-trusty, linux-image-3.13.0-44-generic
  • USN-2467-1: linux-image-3.16.0-29-powerpc-smp, linux-image-3.16.0-29-lowlatency, linux-image-3.16.0-29-powerpc-e500mc, linux-image-3.16.0-29-powerpc64-smp, linux-lts-utopic, linux-image-3.16.0-29-powerpc64-emb, linux-image-3.16.0-29-generic, linux-image-3.16.0-29-generic-lpae
  • USN-2468-1: linux-image-3.16.0-29-lowlatency, linux-image-3.16.0-29-powerpc-e500mc, linux-image-3.16.0-29-powerpc-smp, linux-image-3.16.0-29-powerpc64-smp, linux-image-3.16.0-29-powerpc64-emb, linux-image-3.16.0-29-generic, linux-image-3.16.0-29-generic-lpae, linux
  • USN-2443-1: linux-image-3.2.0-74-omap, linux-image-3.2.0-74-generic, linux-image-3.2.0-74-generic-pae, linux-image-3.2.0-74-virtual, linux, linux-image-3.2.0-74-powerpc64-smp, linux-image-3.2.0-74-powerpc-smp, linux-image-3.2.0-74-highbank
  • USN-2446-1: linux-image-3.13.0-43-generic, linux-image-3.13.0-43-lowlatency, linux-image-3.13.0-43-powerpc64-smp, linux-image-3.13.0-43-powerpc-e500, linux-image-3.13.0-43-powerpc-e500mc, linux, linux-image-3.13.0-43-powerpc-smp, linux-image-3.13.0-43-generic-lpae, linux-image-3.13.0-43-powerpc64-emb
  • USN-2447-1: linux-image-3.16.0-28-powerpc-e500mc, linux-lts-utopic, linux-image-3.16.0-28-powerpc64-smp, linux-image-3.16.0-28-generic-lpae, linux-image-3.16.0-28-lowlatency, linux-image-3.16.0-28-powerpc64-emb, linux-image-3.16.0-28-generic, linux-image-3.16.0-28-powerpc-smp