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Ubuntu 12.04 LTS: USN-2018-1 Moderate: Linux Kernel Denial of Service

ubuntu
Calendar Grey November 8, 2013
Scroller Ubuntu
Ubuntu Security Notice USN-2018-2 details resolved vulnerabilities in the Linux kernel and outlines upgrade procedures for maintaining system integrity.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ti-omap4: Linux kernel for OMAP4

Details:

A denial of service flaw was discovered in the Btrfs file system in the

Linux kernel. A local user could cause a denial of service by creating a

large number of files with names that have the same CRC32 hash value.

(CVE-2012-5374)

A denial of service flaw was discovered in the Btrfs file system in the

Linux kernel. A local user could cause a denial of service (prevent file

creation) for a victim, by creating a file with a specific CRC32C hash

value in a directory important to the victim. (CVE-2012-5375)

Dan Carpenter discovered an information leak in the HP Smart Aray and

Compaq SMART2 disk-array driver in the Linux kernel. A local user could

exploit this flaw to obtain sensitive information from kernel memory.

(CVE-2013-2147)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel linux-ti-omap4

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1440-omap4    3.2.0-1440.59

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-2018-1

CVE-2012-5374, CVE-2012-5375, CVE-2013-2147

November 08, 2013

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel linux-ti-omap4

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1440.59

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