Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-2332-1: Linux kernel vulnerabilities

2 September 2014

Several security issues were fixed in the kernel.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

A bug was discovered in the handling of pathname components when used with
an autofs direct mount. A local user could exploit this flaw to cause a
denial of service (system crash) via an open system call. (CVE-2014-0203)

Toralf Förster reported an error in the Linux kernels syscall auditing on
32 bit x86 platforms. A local user could exploit this flaw to cause a
denial of service (OOPS and system crash). (CVE-2014-4508)

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 10.04

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.

References

Related notices

  • USN-2333-1: linux-image-2.6.32-369-ec2, linux-ec2
  • USN-2334-1: linux-image-3.2.0-68-generic-pae, linux-image-3.2.0-68-virtual, linux-image-3.2.0-68-powerpc64-smp, linux, linux-image-3.2.0-68-generic, linux-image-3.2.0-68-highbank, linux-image-3.2.0-68-omap, linux-image-3.2.0-68-powerpc-smp
  • USN-2336-1: linux-image-3.13.0-35-generic-lpae, linux-lts-trusty, linux-image-3.13.0-35-generic
  • USN-2337-1: linux-image-extra-3.13.0-35-generic, linux-image-3.13.0-35-powerpc64-smp, linux-image-3.13.0-35-powerpc-smp, linux-image-3.13.0-35-powerpc-e500mc, linux-image-3.13.0-35-generic-lpae, linux, linux-image-3.13.0-35-powerpc-e500, linux-image-3.13.0-35-powerpc64-emb, linux-image-3.13.0-35-lowlatency, linux-image-3.13.0-35-generic
  • USN-2335-1: linux-image-3.2.0-1452-omap4, linux-ti-omap4
  • USN-2358-1: linux-image-3.13.0-36-generic, linux-image-3.13.0-36-generic-lpae, linux-lts-trusty
  • USN-2359-1: linux-image-3.13.0-36-generic, linux-image-3.13.0-36-powerpc64-emb, linux-image-3.13.0-36-powerpc-e500, linux-image-3.13.0-36-lowlatency, linux, linux-image-extra-3.13.0-36-generic, linux-image-3.13.0-36-powerpc-smp, linux-image-3.13.0-36-powerpc64-smp, linux-image-3.13.0-36-powerpc-e500mc, linux-image-3.13.0-36-generic-lpae

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading