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Ubuntu 12.04 LTS USN-2334-1 Critical: Kernel Threats Addressed

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Calendar Grey September 2, 2014
Scroller Ubuntu
A range of vulnerabilities resolved in Fedora's kernel tackling critical risks such as data breaches and service disruptions.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

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)

Toralf Förster reported an error in the Linux kernels syscall auditing on

32 bit x86 platforms. A local user could exploit this flaw ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak critical software update Ubuntu kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-68-generic    3.2.0-68.102
  linux-image-3.2.0-68-generic-pae  3.2.0-68.102
  linux-image-3.2.0-68-highbank   3.2.0-68.102
  linux-image-3.2.0-68-omap       3.2.0-68.102
  linux-image-3.2.0-68-powerpc-smp  3.2.0-68.102
  linux-image-3.2.0-68-powerpc64-smp  3.2.0-68.102
  linux-image-3.2.0-68-virtual    3.2.0-68.102

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

https://ubuntu.com/security/notices/USN-2334-1

CVE-2014-3917, CVE-2014-4027, CVE-2014-4171, CVE-2014-4508,

CVE-2014-4652, CVE-2014-4653, CVE-2014-4654, CVE-2014-4655,

CVE-2014-4656, CVE-2014-4667, CVE-2014-5077

Severity
critical
Lowest
Low
Medium
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Critical

September 02, 2014

Topics%20covered

Topics Covered

security advisory denial of service information leak critical software update Ubuntu kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-68.102

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