USN-1826-1: Linux kernel vulnerability

Releases

• Ubuntu 12.10

Packages

• linux - Linux kernel

Details

An flaw was discovered in the Linux kernel's perf_events interface. A local
user could exploit this flaw to escalate privileges on the system.

Update instructions

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

Ubuntu 12.10

• linux-image-3.5.0-30-omap - 3.5.0-30.51
• linux-image-3.5.0-30-generic - 3.5.0-30.51
• linux-image-3.5.0-30-highbank - 3.5.0-30.51
• linux-image-3.5.0-30-powerpc-smp - 3.5.0-30.51
• linux-image-3.5.0-30-powerpc64-smp - 3.5.0-30.51

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

• CVE-2013-2094

Related notices

• USN-1839-1: linux-image-3.2.0-1432-omap4, linux-ti-omap4
• USN-1836-1: linux-ti-omap4, linux-image-3.5.0-225-omap4
• USN-1828-1: linux-image-3.5.0-30-generic, linux-lts-quantal
• USN-1838-1: linux-ti-omap4, linux-image-3.5.0-225-omap4
• USN-1825-1: linux-image-3.2.0-43-generic, linux-image-3.2.0-43-powerpc64-smp, linux-image-3.2.0-43-virtual, linux-image-3.2.0-43-omap, linux-image-3.2.0-43-generic-pae, linux, linux-image-3.2.0-43-powerpc-smp, linux-image-3.2.0-43-highbank
• USN-1849-1: linux-lts-raring, linux-image-3.8.0-23-generic
• USN-1827-1: linux, linux-image-3.8.0-21-generic