USN-2018-1: Linux kernel (OMAP4) vulnerabilities

08 November 2013

Several security issues were fixed in the kernel.

Releases

Packages

  • 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 Array 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)

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.