1. Ubuntu Security Notices
  2. USN-1390-1

USN-1390-1: Linux kernel vulnerabilities

Publication date

6 March 2012

Overview

Several security issues were fixed in the kernel.

Releases

Packages

Details

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI
interface. A local attacker on non-x86 systems might be able to cause a
denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System)
driver for Yamaha FM synthesizer chips. A local user can exploit this to
cause memory corruption, causing a denial of service or privilege
escalation. (CVE-2011-1477)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM
partitions. A local user could exploit this to cause a denial of service or
escalate privileges. (CVE-2011-2182)

A flaw was discovered in the Linux kernel's NFSv4 (Network File System
version 4) file system. A local, unprivileged user could use this flaw to
cause a denial of service by creating a file in a NFSv4 filesystem.
(

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI
interface. A local attacker on non-x86 systems might be able to cause a
denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System)
driver for Yamaha FM synthesizer chips. A local user can exploit this to
cause memory corruption, causing a denial of service or privilege
escalation. (CVE-2011-1477)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM
partitions. A local user could exploit this to cause a denial of service or
escalate privileges. (CVE-2011-2182)

A flaw was discovered in the Linux kernel's NFSv4 (Network File System
version 4) file system. A local, unprivileged user could use this flaw to
cause a denial of service by creating a file in a NFSv4 filesystem.
(CVE-2011-4324)

A flaw was found in how the linux kernel handles user-space held futexs. An
unprivileged user could exploit this flaw to cause a denial of service or
possibly elevate privileges. (CVE-2012-0028)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
8.04 hardy linux-image-2.6.24-31-powerpc –  2.6.24-31.99
linux-image-2.6.24-31-sparc64 –  2.6.24-31.99
linux-image-2.6.24-31-virtual –  2.6.24-31.99
linux-image-2.6.24-31-server –  2.6.24-31.99
linux-image-2.6.24-31-hppa32 –  2.6.24-31.99
linux-image-2.6.24-31-lpiacompat –  2.6.24-31.99
linux-image-2.6.24-31-rt –  2.6.24-31.99
linux-image-2.6.24-31-lpia –  2.6.24-31.99
linux-image-2.6.24-31-generic –  2.6.24-31.99
linux-image-2.6.24-31-hppa64 –  2.6.24-31.99
linux-image-2.6.24-31-mckinley –  2.6.24-31.99
linux-image-2.6.24-31-xen –  2.6.24-31.99
linux-image-2.6.24-31-powerpc64-smp –  2.6.24-31.99
linux-image-2.6.24-31-itanium –  2.6.24-31.99
linux-image-2.6.24-31-openvz –  2.6.24-31.99
linux-image-2.6.24-31-386 –  2.6.24-31.99
linux-image-2.6.24-31-sparc64-smp –  2.6.24-31.99
linux-image-2.6.24-31-powerpc-smp –  2.6.24-31.99

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.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›