USN-1700-2: Linux kernel (OMAP4) regression

1 February 2013

linux-ti-omap4 regression

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.10

Summary

USN-1700-1 introduced a regression in the Linux kernel.

Software Description

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

USN-1700-1 fixed vulnerabilities in the Linux kernel. Due to an unrelated regression inotify/fanotify stopped working after upgrading. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

A flaw was discovered in the Linux kernel’s handling of script execution when module loading is enabled. A local attacker could exploit this flaw to cause a leak of kernel stack contents. (CVE-2012-4530)

Florian Weimer discovered that hypervkvpd, which is distributed in the Linux kernel, was not correctly validating source addresses of netlink packets. An untrusted local user can cause a denial of service by causing hypervkvpd to exit. (CVE-2012-5532)

Update instructions

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

Ubuntu 12.10
linux-image-3.5.0-218-omap4 - 3.5.0-218.26

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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