USN-2335-1: Linux kernel (OMAP4) vulnerabilities

02 September 2014

Several security issues were fixed in the kernel.

Releases

Packages

Details

An flaw was discovered in the Linux kernel's audit subsystem when auditing
certain syscalls. A local attacker could exploit this flaw to obtain
potentially sensitive single-bit values from kernel memory or cause a
denial of service (OOPS). (CVE-2014-3917)

An information leak was discovered in the rd_mcp backend of the iSCSI
target subsystem in the Linux kernel. A local user could exploit this flaw
to obtain sensitive information from ramdisk_mcp memory by leveraging
access to a SCSI initiator. (CVE-2014-4027)

Sasha Levin reported an issue with the Linux kernel's shared memory
subsystem when used with range notifications and hole punching. A local
user could exploit this flaw to cause a denial of service. (CVE-2014-4171)

An information leak was discovered in the control implemenation of the
Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A
local user could exploit this flaw to obtain sensitive information from
kernel memory. (CVE-2014-4652)

A use-after-free flaw was discovered in the Advanced Linux Sound
Architecture (ALSA) control implementation of the Linux kernel. A local
user could exploit this flaw to cause a denial of service (system crash).
(CVE-2014-4653)

A authorization bug was discovered with the snd_ctl_elem_add function of
the Advanced Linux Sound Architecture (ALSA) in the Linux kernel. A local
user could exploit his bug to cause a denial of service (remove kernel
controls). (CVE-2014-4654)

A flaw discovered in how the snd_ctl_elem function of the Advanced Linux
Sound Architecture (ALSA) handled a reference count. A local user could
exploit this flaw to cause a denial of service (integer overflow and limit
bypass). (CVE-2014-4655)

An integer overflow flaw was discovered in the control implementation of
the Advanced Linux Sound Architecture (ALSA). A local user could exploit
this flaw to cause a denial of service (system crash). (CVE-2014-4656)

An integer underflow flaw was discovered in the Linux kernel's handling of
the backlog value for certain SCTP packets. A remote attacker could exploit
this flaw to cause a denial of service (socket outage) via a crafted SCTP
packet. (CVE-2014-4667)

Jason Gunthorpe reported a flaw with SCTP authentication in the Linux
kernel. A remote attacker could exploit this flaw to cause a denial of
service (NULL pointer dereference and OOPS). (CVE-2014-5077)

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-2287-1: linux-image-3.11.0-26-generic, linux-lts-saucy, linux-image-3.11.0-26-generic-lpae
  • USN-2337-1: linux-image-3.13.0-35-lowlatency, linux-image-3.13.0-35-powerpc-e500, linux-image-3.13.0-35-powerpc64-smp, linux, linux-image-3.13.0-35-powerpc64-emb, linux-image-3.13.0-35-generic-lpae, linux-image-3.13.0-35-powerpc-e500mc, linux-image-3.13.0-35-powerpc-smp, linux-image-3.13.0-35-generic, linux-image-extra-3.13.0-35-generic
  • USN-2314-1: linux-image-3.13.0-33-generic, linux-image-3.13.0-33-powerpc-e500mc, linux-image-3.13.0-33-powerpc64-emb, linux-image-3.13.0-33-powerpc-smp, linux, linux-image-3.13.0-33-powerpc-e500, linux-image-extra-3.13.0-33-generic, linux-image-3.13.0-33-lowlatency, linux-image-3.13.0-33-powerpc64-smp, linux-image-3.13.0-33-generic-lpae
  • USN-2286-1: linux-lts-raring, linux-image-3.8.0-44-generic
  • USN-2282-1: linux-image-2.6.32-64-sparc64, linux-image-2.6.32-64-ia64, linux-image-2.6.32-64-generic-pae, linux-image-2.6.32-64-powerpc64-smp, linux-image-2.6.32-64-server, linux-image-2.6.32-64-powerpc-smp, linux-image-2.6.32-64-lpia, linux-image-2.6.32-64-powerpc, linux-image-2.6.32-64-generic, linux-image-2.6.32-64-preempt, linux-image-2.6.32-64-versatile, linux, linux-image-2.6.32-64-sparc64-smp, linux-image-2.6.32-64-virtual, linux-image-2.6.32-64-386
  • USN-2359-1: linux-image-3.13.0-36-lowlatency, linux-image-3.13.0-36-generic-lpae, linux-image-3.13.0-36-generic, linux-image-3.13.0-36-powerpc-e500, linux-image-3.13.0-36-powerpc-e500mc, linux-image-3.13.0-36-powerpc64-emb, linux-image-3.13.0-36-powerpc-smp, linux, linux-image-3.13.0-36-powerpc64-smp, linux-image-extra-3.13.0-36-generic
  • USN-2334-1: linux-image-3.2.0-68-powerpc64-smp, linux, linux-image-3.2.0-68-generic, linux-image-3.2.0-68-powerpc-smp, linux-image-3.2.0-68-generic-pae, linux-image-3.2.0-68-omap, linux-image-3.2.0-68-virtual, linux-image-3.2.0-68-highbank
  • USN-2358-1: linux-image-3.13.0-36-generic, linux-image-3.13.0-36-generic-lpae, linux-lts-trusty
  • USN-2289-1: linux-image-3.11.0-26-generic, linux, linux-image-3.11.0-26-generic-lpae
  • USN-2285-1: linux-lts-quantal, linux-image-3.5.0-54-generic
  • USN-2333-1: linux-ec2, linux-image-2.6.32-369-ec2
  • USN-2336-1: linux-image-3.13.0-35-generic, linux-image-3.13.0-35-generic-lpae, linux-lts-trusty
  • USN-2313-1: linux-image-3.13.0-33-generic, linux-image-3.13.0-33-generic-lpae, linux-lts-trusty
  • USN-2281-1: linux-image-2.6.32-368-ec2, linux-ec2
  • USN-2332-1: linux-image-2.6.32-65-generic-pae, linux-image-2.6.32-65-lpia, linux-image-2.6.32-65-generic, linux, linux-image-2.6.32-65-powerpc-smp, linux-image-2.6.32-65-preempt, linux-image-2.6.32-65-virtual, linux-image-2.6.32-65-server, linux-image-2.6.32-65-sparc64-smp, linux-image-2.6.32-65-versatile, linux-image-2.6.32-65-powerpc, linux-image-2.6.32-65-386, linux-image-2.6.32-65-ia64, linux-image-2.6.32-65-sparc64, linux-image-2.6.32-65-powerpc64-smp